Trainer Bob Harper Replaces Alison Sweeney as Host of 'Biggest Loser'

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Bob Harper has got a new gig!

After being a trainer on The Biggest Loserfor 16 seasons, Harper will now serve as the host of the weight-loss competition show. Starting Tuesday, September 8, he will replace former host Alison Sweeney for season 17 of the NBC program.

WATCH: Former Contestant Slams The Biggest Loser, Others Stand By Show

"I'm super excited about taking the position of host on The Biggest Loser," Harper, 50, said in a statement. "I've been with the show since season 1, so I know all of the ins and outs, and let me tell you, the weigh-in room is going to be a completely different ballgame with me at the steering wheel."

Those who loved Harper as a trainer will be happy to know he'll still be involved in the contestants' weight-loss journey. According to the show, he will "offer his training expertise to contestants at various points throughout the season," and will also guide them along "through all weigh-ins, challenges and temptations."

MORE: Jillian Michaels Reveals Why She Left The Biggest Loser

Dolvett Quince and Jennifer Widerstrom will return as trainers, working with eight contestant teams.

Do you think Harper is right for the role?

Earlier this year, ET interviewed former contestants of The Biggest Loser and learned about the ups and downs of returning to real life after the show is over: 

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