In what looks like the guiltiest pleasure of the week, the guys behind True Genius Requires Insanity and Educatorz.com are hosting "Friends: A Celebration of 50 Years of Teen Pop" at Wonderland. DJs Cold Case and TMY are promising David Cassidy, Elvis, Miley Cyrus, New Kids on the Block, the Jackson Five, Tiffany, Britney and all kinds of other cheesy goodness. You will dance. You will sing along. You will swear it's ironic. (It isn't.) You'll make eyes at some cute guy or girl. And best of all, the party is free.