Sterling's fellow Rough Copy
bandmates are Joey Thomas and Kazeem Ajobo.
She's joined by Nicholas McDonald, Luke Friend, Sam Callahan, Tamera Foster, Hannah Barrett, Abi Alton and Rough Copy
We weren't given an explanation for the missing third member of Rough Copy
so it took a moment to realise no one else would be joining them.The two remaining members made up for it by putting on a fun show with InThe AirTonight and Every Little Step/U Got ThatVibe.
Despite missing band member Kaz due to illness, Rough Copy
were arguably the most entertaining act on the night, coupling great stage presence with their versions of Phil Collins' Another Day In Paradise and Earth, Wind and Fire's September.
The third contestant to make the final, after a nailbiting sing-off with band Rough Copy
, is young heartthrob, Luke Friend.
were sent home in the semi-finals last week after their rendition of Boyz II Men's "End of the Road" in the sing-off failed to convince the audience, who voted Luke Friend to the finals.
Rolling In The Deep superstar Adele, 25, backed Luke to beat Sam Bailey, 36, Nicholas McDonald, 27, and Rough Copy
by tweeting: "Whoa Luke Friend was ridiculously good in that sing off on X factor!
"There was a misunderstanding among Islamist groups resulting form misreading the first rough copy
of the constitution," said Mahmoud Ghuzlan, the spokesman for the Muslim Brotherhood.
A rough copy
for the package was made out of gray bogus paper to work out the size, folds, and tabs for gluing.
Elsewhere on the bill for the show, which takes place at Coventry Airport's Classic Air Force Airbase on June 27, are The X Factor finalists Rough Copy
and Britain's Got Talent favourites Old Men Grooving.
There will also be a live musical performance from Rough Copy
from X Factor and Braintear Spookie.
The 36-year-old, who is four months pregnant with her third child, will be joined by fellow X Factor stars Union J and Rough Copy
for the Sunday spectacular on July 20.