15 December 2013, 06:00
The 'Mama Do The Hump' stars accept the challenge by Capital's Max.
Rizzle Kicks can be seen showing off their freestyle rap skills backstage at this year's Jingle Bell Ball 2013.
The 'Down With The Trumpets' stars were set a challenge by Max to rap about Lady Gaga's heels, Jason Derulo and Jessie J's new short hairstyle.
After some initial doubts, Jordan showed off what he does best and delivered some impromptu rhymes.
The pair of Jordan and Harley were on a line-up which included all the aforementioned stars as well as the likes of Katy Perry, Tinie Tempah and The Vamps.
Rizzle Kicks also joined Olly Murs during his set as they all joined forces for an energetic rendition of 'Heart Skips A Beat'.