Me the front singer

I've been studying like crazy to get the lyrics in my head for the past week, but it's starting to sink in. Tonight I'll be having the first of three gigs with Bitter Sweet, a cover band. And I'll be fronting the band as the singer! Ain't that cool! The original singer is on holiday and they asked me to fill in. It's a new challenge for me and I hope it works out ok. I know it will. If I just get all these Robbie Williams songs into my head...