Will Smith  and DJ Jazzy Jeff gave a Las Vegas crowd quite the treat when they reunited on stage to perform  their 1991 hit "Summertime" on Saturday. Will showed up to the Palms pool party to watch his son Trey do a DJing set and ended up getting in front of the audience himself; while rapping to the classic Summer jam, Will peeled off his shirt and put his impressive physique on display. Will shared a photo and video of the fun on his Facebook page , writing, "In Vegas at a pool party with Jazzy. This dude is RIDICULOUS on the tables!!!!! STILL." Check out Will and DJ Jazzy Jeff bringing the '90s back below.