Beyonce recently stopped by the AOL Sessions studio to perform live versions of 'Single Ladies' and 'If I Were a Boy,' from her just-released album 'I Am ... Sasha Fierce.' Watch as the R&B queen shakes things up on the set, complete with backup dancers and a full band.

Beyonce brings out her alter ego on her hot-off-the-press album, 'I Am ... Sasha Fierce,' which features the smash hit, 'Single Ladies.' But can Beyonce outshine 'American Idol' winner David Cook who is also releasing his own self-titled debut album today? Listen to both records in their entirety in this week's full CD listening party and decide for yourself.

'Total Request Live' received an all-star send-off on Sunday as the MTV video countdown show shut down after ten long years on air. Beyonce, Fall Out Boy, 50 Cent, Taylor Swift, and Hilary Duff -- just to name a few -- were all on hand to celebrate the finale in true star style. Check out photos from the blowout below.

After ten years, MTV's 'Total Request Live' is shutting its doors and closing up shop. This Sunday will mark the blowout finale event, aptly entitled 'Total Finale Live,' where Beyonce, Fall Out Boy, 50 Cent and the Backstreet Boys are scheduled to perform. Ludacris, Snoop Dogg and Nelly are also on deck to bring you a once-in-a-lifetime collabo, while Diddy, Mariah Carey, Taylor Swift, Hilary Duff, Benji and Joel Madden and more will appear on the show to recount their favorite TRL moments.

Tune into MTV on November 16 at 8pm ET when Damien Fahey, Lyndsey Rodrigues and, of course, Carson Daly (the man who started it all) will host the goodbye event.

Rihanna, Carrie Underwood and Miley Cyrus have joined a superstar cast of fifteen female pop singers to record 'Just Stand Up,' a charity song in support of cancer research. Beyonce, Mariah Carey, Leona Lewis, Fergie, Mary J. Blige and more will also all take part in the fundraising single in conjunction with Stand Up to Cancer, with the goal of encouraging the public to help stop cancer from being a leading cause of death.

'Just Stand Up' will be performed live on Friday, September 5 with a simultaneous broadcast on ABC, CBS and NBC. It will be available as an iTunes download on September 2.

Listen to 'Just Stand Up'!

Forbes just released their 'Celebrity 100' list, which calls out the world's most powerful celebrities ranked by income, notoriety, media mentions and more. Coming in at No. 35 is none other than teen sensation Miley Cyrus, whose income from June 2007 to June 2008 is estimated at $25 million.

Other top slots went to Justin Timberlake, who came in at No. 12, and Beyonce, who dominates at No. 4. The top honor went to talk show host and mega mogul Oprah Winfrey, who made a whopping $275 million in a year's time!
Check out the full list on Forbes.com.

Beyonce has been glamming it up for the cameras since her Destiny's Child days. Now people are on the edge of their seats waiting to see what the daring fashionista will show up in on her red carpet nights.

Though we may never see photos of her wedding gown (her marriage to Jay-Z remains officially unconfirmed), we have been able to see her stunning ensembles at the events of the year. Check out her best looks in this Stylelist gallery.