Let's Dance For Comic Relief, episode 3 review It was a night of last-minute replacements on Let's Dance For Comic Relief (BBC One) with both a contestant and a judge pulling out at the eleventh hour. However, the show's talking point was undoubtedly the sight of Vanessa Feltz in ripped fishnet stockings, straddling a cannon as it shot glitter all over the studio audience. Many of them might need to seek treatment for post-traumatic shock. This was the third and ultimate heat of the charity celebrity prance-off. So who would be joining The Soap Stars, comedians Katherine Ryan and Tim Vine, and Coronation Street actor Antony Cotton in next week's final? That dubious honour went to West End star Jodie Prenger - who stepped in at the last moment after Boyzone singer-turned-actor Keith Duffy dropped out - and comedian Lee Nelson. Prenger had clearly been on standby because her dance to 80s funk classic Word Up was impressively polished. Amusingly, she replaced Cameo frontman Larry Blackmon's iconic red codpiece with a light-up Comic Relief nose. Permanently baseball cap-clad Nelson - who works a sort of sub-Ali G faux-chav schtick which is feeling distinctly dated - impressed with a clever take on Swan Lake, combining ballet and streetdance to entertaining effect. Elsewhere, likeable ventriloquist Nina Conti did a jungle-themed routine to Madagascar number I Like To Move It, cheered on by her own monkey puppet and a blast from the past in the furry vulpine form of Basil Brush. Newsround alumni Ore Oduba and Sonali Shah busted out an energetic retro jive to Outkast's Hey Ya. Both were game efforts and might have fared better had the contestants registered a flicker on the household name scale. That left Feltz to steal the show, channelling Cher with her tribute to If I Could Turn Back Time. Bravely poured into a skimpy outfit which strained at the seams, she descended from the ceiling on wires before stomping round the stage like a tipsy aunt at a wedding disco. We won't be witnessing this sight again in the final, which is a shame mixed with a massive relief. Comedy character Keith Lemon was billed to be joining Lee Mack and former Strictly judge Arlene Phillips on the panel but Lemon was a no-show. Radio 1 DJ Greg James stepped in and flirted uncomfortably with Feltz. There was music from Nicole Scherzinger, who belted out her new single with gusto while wearing what looked like an upcycled bin bag, and teen heart-throb Justin Bieber, who had "Beliebers" squealing and any viewers past puberty wondering what all the fuss was about. One more weekend of this show to go. If we all hold hands and do our breathing exercises, we can get through this.