by Andrew SpoorsWITH the weather beating down outside, American rockers Goo Goo Dolls warmed the O2 academy and its packed audience with their smooth brand of alternative rock.Considered one of America’s darling bands, the Goo Goo Dolls have never really hit the mainstream here for whatever reason and only threatened to hit the British consciousness with global smash hit Iris.Accustomed to playing sell-out stadiums and across the Pond, the modest surroundings of the O2 gave fans the chance to get up close and personal to Buffalo’s heroes.Kicking the night off was Glaswegian formed quintet Unkl