Nick Lachey's brother Drew is begging his wife to stay calm and collected as he competes for first place in TV dance contest DANCING WITH THE STARS - because she's eight months pregnant.

The former 98 DEGREES star is the favourite to win the reality TV contest, but fears impending fatherhood could wreck his chances.

He says, "My wife is having a baby, hopefully not during the show or before the show ends.

"After the show I'll be a first-time father and (have) all the stress and the joy that comes along with that."