The icing on this 'don't-call-it-a-comeback' cake is that the show will feature one of the original pop stars from the ultimate boy band era: Nick Carter (arguably the cutest of the Backstreet Boys). And joining Carter is Emma Bunton, a.k.a Baby Spice (but why tho?) via revolutionary '90s/'00s girl band quintet Spice Girls.
The Backstreet Boys made a surprise appearance during Florida Georgia Line's set at the 2016 iHeartRadio Music Festival on Saturday night (Sept. 24), with the two groups performing BSB's hit "Everybody."