The reality TV regular is among the celebrities competing in the third heat of the Tom Daley diving show on 18 January.
We know, we know. Tom Daley in trunks, then Boyzone's Keith Duffy last week. Now Dan Osborne. They are spoiling us, aren't they?!
Dan will compete against model Danielle Lloyd, comedian Patrick Monahan, singer Paul Young and Tory MP Penny Mourdant.
Dan tweeted last month: "Who will be supporting me on #Splash apart from my Mum & Dad?? Ha!!"
We imagine, judging from these pictures, plenty of people!
Dan isn't the only TOWIE star to appear on Splash! this year. Gemma Collins competed in the first heat but, unfortunately, didn't make it to the semi final stage.
Aside from training for his diving debut, handsome Dan has been enjoying his new role as a parent, following the arrival of his baby son before Christmas.
So far Dan has kept his son away from the limelight, although he has told fans how much he is loving being a father.
"He's perfect! Love him more than anything!!" he tweeted after the birth. "Thank you ALL soooo much for your tweets about my little boy, appreciate every single tweet. He's just amazing! Unbelievable feeling."
Relive Dan's a-mazing turn as Reveal's Stripping Santa below!