It's understandable that you might have OD'ed on Sarah McLachlan. She's everywhere -- radio, VH1, and all over the glossies -- but a dose of Mirrorball just might cure you. On her first full live disc, the Canadian superstar is given more room to play, and she delivers her songs from Fumbling Towards Ecstasy and Surfacing with new enthusiasm. As pleasing as the hits "Building a Mystery," "Aida," and "Angel" are, it's the older material that provides the sweetest treats of the package: This version of "Hold On" makes the line "This is going to hurt like hell" sound more delicious than "Ice Cream," while "Possession" is boosted into a more rollicking adventure than the original. The undeniable pinnacle of this set, however, is the gorgeous rendering of "I Will Remember You," often overlooked as one of McLachlan's best tracks.