Andrea first to crash out of Tumble
It was a rough start to Tumble for Andrea McLean as the television presenter became the first celebrity to crash out of the BBC reality show.
The Loose Women host limped out of the competition after losing out to former Blue Peter presenter Peter Duncan in the play-off, which saw the duo take on the dreaded vault.
Andrea went for a straddle dismount, while Peter's exit from the equipment - a handspring - was more courageous but messy.
Three-times Olympic gold gymnast and judge Nadia Comaneci decided Peter had done enough to get through to next week's show, which is due to involve the trampoline.
The 60-year-old constantly blamed his age for his lack of dexterity in training and he didn't do enough to avoid a low score on the aerial hoop.
Judges described the routine as "fun" but "sloppy", with TeamGB Olympic gymnast and judge Louis Smith adding: "Try not to mask the mistakes with acting the goofy one. There were good tricks but I want to see smooth transitions as well."
Accident-prone Andrea battled through the pain barrier after injuring her ankles in training - though it meant she struggled completing one move.
Nadia said: "Yes, you made a mistake but you went on and you did the harder trick after."
Popstar Ian Watkins, better known as "H" from Steps, topped the leader board with a score of 31. He performed through the pain barrier after injuring his hand on the aerial hoop in training.
Choreographer Seb Stella said: "It had perfect control from beginning to end, you play like a pro."
Emma Samms, known for her role in 80s TV series Dynasty, demonstrated her poise as a former junior ballet dancer to wow on the suspended hoop, finishing second to Ian.
Olympic gymnast Craig Heap told the 53-year-old: "I wanted a good performance and you delivered. You have got the best legs and feet in this competition."
Elsewhere there were fine performances from a host of television personalities.
EastEnders actor John Partridge, who drew the highest score from the judges during last week's dry-run in which all contestants were given immunity from elimination, was praised as he hauled his bulky 6ft 1in frame around the suspended hoop.
Nadia said: "The toe-hang is so painful, this is very difficult and I appreciated it a lot."
Wolfblood star Bobby Lockwood incorporated a fairground theme as he impressed with a series of displays on the floor.
Craig said: "I think you have a real chance of becoming an all-round gymnast,"
Reality television regular Lucy Mecklenburgh, known for her appearances in The Only Way Is Essex, demonstrated a new-found confidence on the hoop after propping up the leader board during last week's first episode.
Praising her improvement, Craig said: "Most kids have cried at the end of a competition because it hasn't gone the way they wanted. You're back in the competition."
Former Girls Aloud singer Sarah Harding used her experience in one of the world's most successful girl groups to take on acrobatic-choreography - despite her LED costume short-circuiting in the moments before the performance.
Craig said he wanted to see more, but Louis said: "I loved the passion, you danced around the floor great - it was really funky."
Amelle Berrabah, one of six women to perform as a member of pop three-piece Sugababes, defied her tiny frame to lift dance partner Doug Fordyce.
But judges said they were expecting a more complex routine. Louis said: "I wanted to see some somersaults and tumbles."
Four-time world boxing champion Carl Froch summoned inspiration from Greek mythology for his floor routine. But he only just missed out on a place in the bottom two.
The judges agreed there was room for improvement from a "shaky" Carl, but Seb said: "You need to act it out and show what you did, I'm proud of what you did.