Justin Timberlake's bachelor weekend in Vegas: Tequila and Timbaland

Though Jessica Biel insists she hasn't had time to plan her wedding to Justin Timberlake, we're guessing that's just to divert attention -- because Justin and his closest man-friends celebrated his bachelor party in Vegas this weekend!

Gossip Cop reports that Justin and his 25 buddies partied at Surrender nightclub at the Wynn Hotel in Las Vegas. He drank tequila (his own 901 brand, obviously) and wore a fedora and bowtie. His pals took a swim in the pool, but JT was on his best behavior.

Timbaland was at the same club, and the rapper -- who has collaborated with Justin in the past -- popped over to congratulate him on his upcoming wedding. Later, they went to Tryst nightclub to finish out the evening in style.