It was Movies week this evening and Will and Karen Clifton danced the Salsa to 'Jai Ho (You Are My Destiny)' by A.R. Rahman and the Pussycat Dolls from Slumdog Millionaire.
Len wasn't too impressed with the lack of Salsa content, but Will hit back insisting there was more than enough.
Len then told Will to 'put up and shut up', before insisting it was a joke, as Will reminisced about his infamous clash with Simon Cowell on Pop Idol.
After the awkward exchange, Will told Strictly host Claudia Winkleman: "I love Len as well and I didn't want to come across as disrespectful, I can help myself, I get passionate."
Will and Karen went on to score 31 points with 8s from all the judges except from Len who gave a 7.
On Twitter, Strictly fans were split over who was in the right...
I've see more salsa in a Tesco chill cabinet Will Young! I'm with Len. #StrictlyComeDancing
— Simon Denegri (@SDenegri) October 8, 2016
Oh Will, don't argue with Len, he's the expert... #IAgreeWithLen
— Lesley Ann (@lesleyannp1) October 8, 2016
WILL TRYING TO TAKE LEN ON I'M SCREAMING
— harriet saw endgame (@lokisodinson_) October 8, 2016
LOVED that Bollywood Salsa by Will and Karen! Len is too old-fashioned! #Strictly
— Naomi (@justnaomiyeh) October 8, 2016
Will young just sassed Len. Well, RIP to him #Strictly
— exeterdancesport (@exedancesport) October 8, 2016
Good on Will Young for standing up to grumpy passive aggressive Len Goodman #Strictly
— Martin Gray (@MartGray) October 8, 2016
What did you make of Will's Bollywood themed salsa?
Strictly Come Dancing airs Saturday and Sunday nights on BBC One.