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The Capital Late Show With Marvin Humes 10pm - 1am
29 October 2014, 08:10 | Updated: 4 December 2017, 11:10
The outspoken TV star stopped by Capital to chat to Greg Burns & Kat Shoob, and we couldn't resist throwing down the challenge of covering the biggest song of the year - Meghan Trainor's Big Top 40 record breaking 'All About That Bass'!
Using his trademark charm and eloquence, Russell absolutely nailed it, but there's only one problem - Simon Cowell gave an equally incredible performance too.
So we're asking you to vote for who was best - are you on Team Brand or Team Cowell? Cast your vote on Twitter using #AllAboutThatBrand or #AllAboutThatCowell!