Isaiah Mustafa -- a.k.a. the Old Spice Guy -- was coy with UsMagazine.com on Monday about his rumored romance with comedienne Kathy Griffin.
"I think she is amazing!" Mustafa, 37, told Us at Cosmopolitan mag's Fun Fearless Males of 2011 bash in NYC.
"I think she's a force of nature. And she's on Broadway, so if you get a chance, go check her out!"
"But," Mustafa insisted, "I just happen to be a single man!"
Still, a source told Us last month that Mustafa and Griffin, 50, "are not boyfriend/girlfriend, but they are definitely spending time together and getting to know each other." (The duo began seeing each other several months ago, and were caught canoodling between takes on the set of Glee Feb. 23.)