The Morning Mix: Lady Gaga Cancels Concert

Poor Lady Gaga—the pop star had to cancel her concert in Indiana last night due to exhaustion and dehydration. She profusely apologized on her Twitter, but we’re sure her little monsters will forgive her, especially since they have her debut appearance on Oprah later today to look forward to. Watch a preview here, and check back later in the day to find out what freakazoid outfit Ms. Germanotta picked out for her big tete-a-tete with Momma O. In the meantime, let’s mix it:

Did You Hear?

:: Jason Derulo recounts his adventures on tour with Lady Gaga in a video blog. While shirtless. You’re welcome. [Radar Online]

:: Fantasia performed an hour-long set at the Barbados Music Awards and took home the International Award of Excellence. Her VH1 reality show drew a crowd of 2.3 million viewers, too, so she’s having a pretty damn good week. [Just Jared]

:: Country star John Rich named his new baby boy… wait for it… Cash. [OK!]

:: Alicia Keys sings for AOL Sessions. Sadly, no Stephen Colbert cameo. [AOL Music]

:: Kelis took to her MySpace blog to lash out at PETA like PETA was her ex husband Nas. [That Grape Juice]

Behind the jump: we celebrate the unofficial anthem of Australia.

VIDEO REWIND OF THE DAY: This day in 1983, Men at Work scored a number one hit with “Down Under,” which stayed at the top of the charts for four consecutive weeks. Twenty-seven years later, this is still played in just about every backpacker bar in Australia (I know, because I’ve personally been to each and every one of them). Some may find this ditty irritating, but you have to give Men at Work credit for writing a song that stands the test of time. (Sadly, I cannot recommend eating a Vegemite sandwich.)

Have a great day, everybody!