(AP) - Michael Jackson fans converged on Harlem's famedApollo Theater Tuesday for a public tribute to the performer,clutching photographs, cheering and dancing to his music at thelegendary venue that launched the one-time child star's career.

The Rev. Al Sharpton gave a rousing speech praising the pop starto hundreds of fans who crammed into the theater as others waitedin line outside to pay their respects.

Thousands were expected to pay their respects at the theater,which was letting in 600 people at a time to listen to Jackson'smusic, watch a video tribute and leave flowers and memorabilia.Inside, fans danced and sang along to a medley of Jackson andJackson 5 hits including "Billie Jean," "ABC" and "Don't Stop'Til You Get Enough."

The event began shortly after 2 p.m., but many people had linedup hours earlier.

Fans wrote messages on a wall of remembrance outside the 125thstreet theater. "God bless and be with you M. Jackson," wrote onefan. "We all share your grief. Love always," read a message tohis family.

Fans began assembling at the Apollo soon after Jackson's deathThursday in Los Angeles. It has continued to serve as an impromptumemorial site ever since.