Bruno Mars

Kelly Clarkson and Bruno Mars performed on 'The X Factor USA'

Kelly Clarkson and Bruno Mars performed on 'The X Factor USA'Kelly Clarkson and Bruno Mars rocked out last night on 'The X Factor USA' stage by performing their new singles completed with graphic flashing on the screens behind them.

Wearing a beige bandage dress, the 'American Idol' winner, Kelly gave her pop single "What Doesn't Kill You (Stronger)" whilst words from her lyrics were puped in background.

Kelly Clarkson "What Doesn't Kill You (Stronger)" - The X Factor USA :

Bruno Mars delivered at the middle of the night his smooth single featuring 'Breaking Dawn' soundtrack "It Will Rain". Great graphics and lights filled up the stage: fire, flashes of rain, a broken heart, sound of heart beats and other effects. His powerful vocals may not be heard for a while as he tweeted before the show: "Tonight may be my last t.v performance for a while. So imma try & sing the sh*t out of this song on @XFactorUSA TUNE IN!! #TimeForAlbumTwo". Which he did indeed!

Bruno Mars "It Will Rain" - The X Factor USA:

During the last night episode, the country/pop foursome Lakoda Rayne and singer Leroy Bell were sent packing as the acts were ousted from the competition in a brutal double-elimination . The top seven remaining contestants are : Drew Ryniewics, Rachel Crow and Melanie Amaro - mentored by Simon Cowell, Brian "Astro" Bradley, Marcus Canty and Chris Rene - mentored by L.A. Reid, whilst Nicole Scherzinger left with one contestant Josh Krajcik.