The boys say on the side cast this week that it was his 2 brothers, JJ, Josh, Tobi and Randy that were groomsmenI don't think he was the only Sidemen member apart from KSI to be groomsman but in any case Simon and Josh are vv close - Simon always goes on about how much time they spent together in the Sidemen house and I'm sure it helped his case that Freya was a bridesmaid