Let's Sing and Dance, formerly known as Let's Dance, is a British television programme shown on BBC One, featuring celebrities performing famous dance routines to raise money for the charities Comic Relief and Sport Relief. The programme was presented by Steve Jones and Alex Jones, who replaced previous host Claudia Winkleman in 2011. In the first series, Anton du Beke was a regular judge, appearing alongside two guest panellists, but in the second series onwards, three guest judges were on the panel each week.

The first series aired between 21 February and 14 March 2009 and was won by Robert Webb. It raised over £300,000 for Comic Relief. The second series, in aid of Sport Relief, aired from 20 February 2010 until 14 March and was won by Rufus Hound. The third series aired between 19 February 2011 and 12 March in aid of Comic Relief, and was won by James Thornton and Charlie Baker. A fourth series aired from 18 February until 17 March 2012 in aid of Sport Relief, and was won by Rowland Rivron. The fifth ran from 16 February 2013 until 9 March 2013, and was won by Antony Cotton. The series' finale was the last Saturday night show to be broadcast live from BBC Television Centre.

On 6 October 2016, the BBC announced that the show would return for Red Nose Day 2017 as Let's Sing and Dance for Comic Relief. On 28 October 2016, it was announced that Mel Giedroyc and Sue Perkins would host the show. In 2018, it was reported that the Let's Sing and Dance was cancelled after six series.