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) 

Christina Aguilera and Rebecca Ferguson

Rebecca and Christina Aguilera  are duetting
on the x-factor  finale

Rebecca has a gorgeous voice that's stunning in a discreet, non showy, way. So who do they chose to compliment these qualities?A singer who is practically the opposite in every way! Enter Ms Christina Aguilera. Madness.

Listen to Rebecca's voice below as she sings Chris Isaac's Wicked Games.

The other duet partners:

• One direction and Robbie Williams
• Cher and Will.I.Am