When the lineup for the New Orleans Jazz & Heritage Festival was revealed, one entry caught our eye: Tedeschi Trucks Band & Friends. The group certainly has a lot of friends, so who would be sitting in with them for their prized performance spot at one of the world’s most renowned festivals.Today we have the answer, as guitarists Jimmie Vaughan and Billy Gibbons will be making an appearance as the friends of the band. Vaughan is perhaps best known as the brother of the late Stevie Ray Vaughan, though has flourished in his own career as the leader of the Fabulous Thunderbirds. Meanwhile, Gibbons has enjoyed a long tenure as a founding member of ZZ Top.Both musicians have collaborated with the TTB family, including Vaughan, who recently sat in with the group at the Beacon Theatre back in September. Watch below:While Gibbons hasn’t performed with the group, he has crossed paths with guitarist Derek Trucks in recent years. Watch below:Tedeschi Trucks Band is touring on the heels of their recently-released Let Me Get By, and have major tour plans in the works. Don’t miss this band on the road, as they breathe exceptional soul into all of their rockin’ music. More info about their Jazz Fest set can be found here.