An *NSYNC vs. Backstreet Boys golf match might actually happen -- this I promise you -- 'cause Lance Bass tells TMZ Sports he's accepting the "Larger Than Life" crooners' challenge!!
Just a few days after Brian Littrell and Nick Carter told us they wanted to mix it up with *NSYNC on the links ... Bass made it clear he's down.
"Of course," he said while out in Los Angeles ... "Bring it!"
Bass isn't exactly known for his swing -- and he seemed to poke fun at that when we caught up with him on Wednesday .