The band's new track, taken from their Greatest Hits compilation, will play on Radio 2 at 11.30am.
The official Twitter page for the band broke the news, tweeting: "First play of #BeautifulCauseYouLoveMe is on @BBCRadio2 tomorrow at 11.30."
Four members of the band also appeared to tweet lyrics from the song.
Cheryl Cole said: "Staring into the basin I've been washing my face in, jet black mascara racing #BeautifulCauseYouLoveMe."
Strictly Come Dancing contestant and band member Kimberley Walsh wrote: "Right now the whole world could call me ugly, so what, to you, I'm not #beautifulcauseyouloveme," while Sarah Harding added: "I can tell you the deepest and darkest of my secrets, knowing that you will keep it #beautifulcauseyouloveme."
Nicola Roberts also said on the social networking site: "Who would've thought that I'd be so content in my own skin #beautifulcauseyouloveme."
Girls Aloud's latest single 'Something New' is set to be released on November 18, and their new album Ten is due for release on November 26.
Watch the video for 'Something New' below: