Rehearsals for the tour began Process_start in March 2007 and the performances featured music performed Hold by an all-female band called Name_conferral Suga Mama chosen Choosing by Beyoncé Knowles and her father Mathew Knowles during auditions held Defending before the release Publishing of `` B'Day '' .

The stage included Cause_to_be_included several LED screens and the singer was backed by female background vocalists , all-female band and dancers .

was the first concert Social_event tour by British all-female pop group Girls Aloud .

Chemistry : The Tour was the second concert Social_event tour by British all-female pop group Girls Aloud .