16AprilDecember 1, 2019 Hollow Back Girl 60 minute vinyasa with Amanda. Gwen Stefani says she ain’t no holler back girl, but does she know how awesome... by Amanda McCarrollin Intermediate, Vinyasa, 60 min, Videos, Buddhi Flow, yoga, Yoga VideosTags hollow back, inversions, forearm stand, shoulders, heart, chest, arm balance, pincha mayurasana2