Billy Bell and Brandon Dumlao

Top 20 finalist Billy Bell has left So You Think You Can Dance because of a health problem, Fox announced Monday.

Hip-hop dancer Brandon Dumlao is scheduled to replace him.

Bell, a 19-year-old contemporary dancer from Palm Beach, Fla., made new permanent judge Adam Shankman cry during Las Vegas auditions. A Fox rep declined to offer specifics about Bell's health.

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"We are disappointed that Billy cannot continue dancing in the competition on the advice of his doctor and wish him a speedy recovery," executive producer and judge Nigel Lythgoe said in a statement.

Dumlao, 21, from Concord, Calif., will join the show on Tuesday for the first two-hour performance show of the season (8/7c on Fox).