Grab your popcorn, because Kevin Federline just dropped a lil' nostalgia nugget that has us spiraling back to 2004 faster than you can say "Toxic." In an interview with Entertainment Tonight on Tuesday, K-Fed claimed his ex-wife Britney Spears called none other than JUSTIN FREAKIN' TIMBERLAKE the NIGHT BEFORE their wedding. We're talking literally hours before walking down the aisle with her backup dancer turned husband... allegedly.