play along with Keltner included Pete Townshend, Ronnie Wood, Billy Preston, Mick Jagger and George Harrison. Harrison jokingly referred to the sessions on the back cover of his album Living in the Material World. As a jab at Paul McCartney's self-promotion on the back of the album Red Rose Speedway, where it said "for more information on the Wings' Fun Club send a stamped self-addressed envelope...", Harrison wrote on his own album regarding the "Jim Keltner Fun Club", "send a stamped undressed elephant..." Keyboardist William "Smitty" Smith said that there were regular jam sessions of musicians at Clover Studios on Santa Monica Boulevard near Vine Street in Hollywood, but that the increasing number of musicians outgrew the place and the group moved to the Record Plant for more space. Smith was a regular at the Studio C jams, but one Sunday he could not make it and he sent his friend, David Foster, to play keyboards. Foster was so well received by other musicians that he and three others—Paul Stallworth on bass, Danny Kortchmar on guitar and Keltner on drums—formed the band Attitudes. One of the Keltner jam sessions in late December 1973 became known later as "Too Many Cooks". Under the leadership of John Lennon, an all-star lineup performed an extended version of the blues song "Too Many Cooks (Spoil the Soup)", with Mick Jagger on lead vocals, Keltner on drums, Kortchmar and Jesse Ed Davis on guitars, Al Kooper on keyboards, Bobby Keys playing tenor saxophone, Trevor Lawrence on baritone saxophone, Jack Bruce on bass and Harry Nilsson singing background vocals. Jagger was uncomfortable stretching to reach the top of his vocal range and he grew unhappy with the progress being made on the song. Journalist Lucian Truscott IV wrote in 1977 that Kellgren told Jagger to "sit on it", ending the complaints. After Lennon's personal assistant and lover, May Pang, brought the master tapes to light, the track "Too Many Cooks" was released in 2007 on Mick Jagger's album Very Best Of.... Musician and journalist Steven Van Zandt described Jagger's vocals as "ragged but still in control" and the song as "amazing", with "a painful soulfulness [that] hits you and stays with you". In March 1974, to celebrate the first anniversary of the Jim Keltner Fan Club Hour jam series, Ringo Starr and Moose Johnson joined Keltner on drums; Lennon, Marc Benno and Davis played guitar, Ric