Nick Jonas and his sweet Mustang; Joe Jonas inspires guitar player to lose 150 lbs

Nick Jonas, busy with preparing for the Jonas Brothers upcoming South American tour, exits his car outside of his home in Los Angeles today.

Tonight on ABC, 20/20 will be interviewing some of the people featured in People magazine's current "Half Their Size" issue, discussing their weight loss success stories. One of the people featured in the magazine and on tonight's episode is the Jonas Brothers' guitarist/musical director John Lloyd Taylor. In this preview, he talks about how the Jonas Brothers 3D concert film scared him into deciding to change, and how Joe Jonas inspired him to get healthy:

You can catch the rest of John's story as well as the others tonight at 10PM on ABC.

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