Peter Yarrow

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LOS ANGELES, CA - MARCH 03: A general view of the atmosphere at the signing of Peter Yarrow's new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow Of "Peter, Paul And Mary" performs at the signing of his new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow (L) Of "Peter, Paul And Mary" and son Christopher Yarrow pose at the signing of Peter Yarrow's new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow (L) Of "Peter, Paul And Mary" and son Christopher Yarrow pose at the signing of Peter Yarrow's new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow (L) Of "Peter, Paul And Mary" and son Christopher Yarrow pose at the signing of Peter Yarrow's new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow (R) Of "Peter, Paul And Mary" and son Christopher Yarrow perform at the signing of Peter Yarrow's new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow (R) Of "Peter, Paul And Mary" and son Christopher Yarrow perform at the signing of Peter Yarrow's new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow (R) Of "Peter, Paul And Mary" and son Christopher Yarrow perform at the signing of Peter Yarrow's new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow Of "Peter, Paul And Mary" performs at the signing of his new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow (R) Of "Peter, Paul And Mary" and son Christopher Yarrow perform at the signing of Peter Yarrow's new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow (R) Of "Peter, Paul And Mary" and son Christopher Yarrow perform at the signing of Peter Yarrow's new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow Of "Peter, Paul And Mary" performs at the signing of his new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow (R) Of "Peter, Paul And Mary" and son Christopher Yarrow perform at the signing of Peter Yarrow's new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow Of "Peter, Paul And Mary" performs at the signing of his new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow Of "Peter, Paul And Mary" poses at the signing of his new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow Of "Peter, Paul And Mary" poses at the signing of his new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow Of "Peter, Paul And Mary" poses at the signing of his new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow Of "Peter, Paul And Mary" poses at the signing of his new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow Of "Peter, Paul And Mary" poses at the signing of his new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)

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LOS ANGELES, CA - MARCH 03: Musician Peter Yarrow Of "Peter, Paul And Mary" poses at the signing of his new children's book "I'm In Love With A Big Blue Bug" at Barnes & Noble bookstore at The Grove on March 3, 2013 in Los Angeles, California. (Photo by Chelsea Lauren/WireImage)