Aaron on Air

Lady Gaga's attracted a lot of attention for her weight lately: during her most recent concerts, she's appeared much heavier than normal, and there have even been rumors that her record company has demanded that she slim down. 

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Rihanna has gone from "yellow diamonds in the light" to just "Diamonds." That's the name of her new single, and it'll make its debut this Wednesday at 8 a.m. ET on radio stations worldwide. 

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Now we know why Ke$ha was posting the letters "R," "A" and "O" on her Twitter feed -- they're included in the title of her second album.  It's called WARRIOR, and it'll be out December 4. 

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Today, you can make Katy Perry part of your DVD collection. Her concert documentary,Katy Perry: Part of Me, is now available on DVD and Blu-ray.

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After winning video of the year at the MTV Video Music Awards this month, Rihanna could receive more honors at the European version of the show this fall.

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Few would argue that Kelly Clarkson, Pink, Lady Gaga and Jessie J possess some of the most powerful voices in pop music today, so imagine what would happen if they all teamed up on one song. 

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After weeks of rumors, Fox has finally announced the new judging panel for American Idol, and it's no surprise: all the names we've heard mentioned have turned out to be true. 

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The second season of The X Factor on Fox began Wednesday night with the long-awaited debut of its two new judges, Britney Spears and Demi Lovato. They joined the returning Simon Cowell and L.A. Reid.

Before the episode aired, Madonna gave a shout-out to Britney on Facebook, writing, "Britney Spears - wishing you luck tonight on your X-Factor debut!! #GoodLuckBritney."

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It appears as if some smokers have been forced to either kick the habit or go broke, as a new study recently found that a massive tobacco tax increase may be responsible for the decline in smokers in this country, specifically among teens, the lower class and those who receive welfare.

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When you work more than eight hours a day you begin to suffer from frustration and lack of a social life. But did you know overtime can actually kill you?

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For some people, the weekend is spent trying to catch up on all the sleep they deprived themselves of throughout the course of the last week. Yet, while sleeping in can be somewhat of a godsend, new research finds that it might actually make you more tired throughout the week.

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