Diva's Christina Aguilera and Rihanna To duet with Rebecca and Matt on the 2010 X-factor Finale:

Update:

• View Matt and Rihanna's performance here
• View Christina and Rebecca's performance here

Exciting news from the X-factor camp about which celebrities will duet with which contestants in the X-factor finale this weekend.

Rihanna and Matt Cardle

Matt and Rihanna are Duetting on
the x-factor  finale

Painter and decorator Matt Cardle has been paired up with Bajan singer Rihanna; an odd choice considering their contrasting voices. Matt has a soft, delicate, emotive voice whereas Rhiannas' tends to be solid, nasal and a little harsh.

Listen to Matt's voice below as he sings The first time (I ever saw your face)