Here's what hasn't changed about Soulja Boy: Search his name on YouTube and you'll find a guide to his new dance (the Bird Walk). Put on his new album, and you get a mix of bright synth beats and exuberant, drawled catchphrases. "Hey You There" uses the angry shout of a mall security guard as a launching pad for goofy nonsense rhymes. Here's what has changed: The beats on iSouljaBoyTellem — built by Soulja and Mr. Collipark — are beefier. And Soulja Boy's willingness to drill songs into your skull is less charming. The chopped-and-screwed hook of "Go Head" is repeated more than 30 times — about 20 too many.