Korean pop star and internet sensation PSY shows Ryan and Nicole from The Morning Mash Up how to dance Gangnam Style!

Find out Jason Segel’s favorite Muppet and what made Stanley T cry the first time he heard it. Check it out in the video above! 

Check out a live acoustic performance from Plug In Stereo and their single Plans on SiriusXM Hits 1.

Danny McBride, who plays Kenny Powers on Eastbound and Down, discusses his character endorsement deal with K-Swiss.

Lady Gaga talks to the Morning Mashup about her fans, who call themselves her little monsters, and their signature “move” - putting up their paws.

Lady Gaga talks to the Morning Mashup about the death of Gianni Versace and the outfits she wore for the Edge of Glory video.

Lady Gaga shares her favorite metal songs by Black Sabbath, AC/DC, and Iron Maiden and how Bridesmaids made her cry with the Morning Mashup.

Kim Kardashian shares her wedding plans with NBA star Kris Humphries on the Morning Mashup.

White Collar’s Matt Bomer discusses the screen testing for Superman and Amy Adams, who has been cast as Lois Lane in the upcoming super hero flick.

Selena Gomez sits with the Morning Mashup and shares her dislike of facial hair on boyfriend, Justin Bieber. 

Selena Gomez talks to the Morning Mashup about the end of Wizards of Waverly Place and her single Who Says. 

Julie Benz, of No Ordinary Family, discusses her obsession with Twitter and Words With Friends with the Morning Mashup crew. 

Jennifer Lopez sits with the Morning Mashup and discloses how she threatened Ricky Gervais at the Golden Globes!

Jennifer Lopez stopped by to talk to the Morning Mashup about her mom’s winnings in Atlantic City and American Idol tugging at viewer’s heartstrings. 

The Situation, from Jersey Shore, talks the Superbowl and going to “back to the homeland” aka Italy with the Morning Mashup.