Michael Edward "Mike" Love  is a singer/songwriter and musician with
The Beach Boys. He formed the band along with his cousins Brian, Carl,
and Dennis Wilson along with a friend Al Jardine. The group was inducted
into the Rock and Roll Hall of Fame in 1988.

 
The Beach Boys (original group from left to right): Carl Wilson, Dennis Wilson,
Mike Love, Al Jardine, and Brian Wilson

Dean Torrence (above) along with William Jan Berry were Jan and Dean, a 
rock and roll duo, popular from the late 1950s through the mid 1960s.They
became associated with the vocal "surf music" craze that was popularized by
The Beach Boys. Berry (Jan) died March 26, 2004. Torrence tours occasionally
with The Surf City Allstars. 

Pictured Left to right…Jan and Dean

This was  #1 in July 1963 for two weeks.

John Cowsill best known for his work as a singer and drummer with his
siblings’ band, The Cowsells. He is currently a drummer and vocalist for
The Beach Boys touring band, which features original Beach Boys Mike
Love and Bruce Johnston. He also has performed and recorded with
Jan and Dean.

The Cowsills ( from left to right ) Paul, Barry, Bob, and John. The picture
is from 16 Magazine, 1970.

John Cowsill at work