Justin Bieber to Be Celebrity Mentor on 'The X Factor'

Lara Spencer reports what has people buzzing on the "GMA" Pop News Heat Index.
3:00 | 08/29/12

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Transcript for Justin Bieber to Be Celebrity Mentor on 'The X Factor'
In showbiz news, it looks like "x," marks the spot for justin bieber. He has signed on to be a celebrity mentor on "the x-factor." The biebs join a list of celebs that have signed up for the talent show, including rihanna and julio iglesias, and mariah carey. They snapped her up to replace j. Lo on next season's show. matthew McConaughey. Hey. He is enjoying a resurgence in his career, for what will be a shoo-in at the academy awards. And a big role that's causing him to shrink before our eyes. That's not the one. Feel free to keep that picture up. This is the new one. Look at his face. So gaunt. HE WILL STAR ALONG leo DiCaprio, and jean desjardins. And these are big powerful movies. And congratulations for his incredible work in "magic mike." Academy award. Right. I know you haven't forgotten robert pattinson and kristen stewart split. Now, pattinson is selling the l.A. Home he shared with stewart, though she has not moved out. Pattinson bought that house for $6.3 million less on a year ago for the two of them to live in. But it is reportedly over. He, in fact, joked with jimmy kimmel last week about being homeless. So, here's to hoping that pattinson finds a new place to call his own soon. He will be fine. I'm not worried. We met him here. I missed him when he was here. I almost came back from vacation just for that. Lovely and charming. I have something of a crush. Finally, this snapshot of a so-called lion. This is a real story out of england. Britain over the weekend, police and animal experts atlanticly searching for that. What one man described as 1 million percent lion. He may have been 1% right. It is a feline. But king of the front porch. It was an american house cat. The name of said cat, teddy bear. This set off 30 officers, 2 helicopters, out searching for that fierce creature. How could that happen? I know this is a follow-up-free zone. How could that happen? Because somebody saw that big beast lurking in the midst. And they called 911. A little unclear on the concept of foreground and background. That's "pop news." Let's get it down to sam

This transcript has been automatically generated and may not be 100% accurate.

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