Singer Will Young has taken on Strictly Come Dancing stalwart Len Goodman over criticism of a lack of salsa.
Early favourite Will channelled his inner Pussycat Doll for his Salsa to Jai Ho (You Are My Destiny) on movie week with partner Karen Clifton.
But Len, who is taking part in his last series as head judge, told the pair he thought there was a lack of salsa in the dance.
His criticism prompted the singer to bite back, telling Len there was lots of salsa in the dance which reminded everyone of a similar episode on Pop Idol almost 15 years ago involving Simon Cowell and Will.
Then, Will hit back at Simon who told him his performance was "average", causing the entertainment giant to back down and call the show's eventual winner a "gentleman".
Careful Will, Len isn't Simon ! Loved the dance mind. #Strictly
-- Oriane Messina (@orianemessina) October 8, 2016
#Strictly will thinks he's back on Pop Idol, answering Len's comments
-- Gill White (@GillW1220) October 8, 2016
-- Victor Drew (@unco_guid) October 8, 2016
But Len didn't take it so well, telling Will he should "turn up, keep up, shut up".
Twitter was divided over the clash.
Loved that salsa from Will - and well done him for standing up for his routine. Unnecessarily rude reaction to that from Len... #Strictly
-- Paula (@MsPMeyer) October 8, 2016
#Strictly - I kinda agree with Len. I loved Will Young's Jai Ho but think it could've been an amazing samba rather than side by side salsa
-- Dr Jane Evans (@janewevans) October 8, 2016
Can I just say: I love that Will defended Karen's choreography to Len! #Strictly
-- Jazz Munn (@jammymunn) October 8, 2016
-- karen howell (@jakesauntie) October 8, 2016
But whoever's side you were on, everyone enjoyed it.
Oooh errr Len and Will Young on Strictly... pic.twitter.com/1xByHayQYH
-- Lindsey Alder (@linds_alder) October 8, 2016
Ding Ding ? ? in the judges corner we have Len Goodman. In the contestants corner we have Will Young. Let the dance off commence #Strictly
-- Jordan (@J_Crowson) October 8, 2016
-- Caroline Chapman (@caz_chapman) October 8, 2016
And Will did clear up the clash, telling Claudia Winkleman he "loves Len" and "did not want to come across as disrespectful."