The gold medal-winning Olympian beamed as he introduced the rapper in an all black outfit topped off with a red leather vest.
After the meeting, the thrilled swimmer tweeted a photo of the two with the comment, "I finally met @LilTunechi #jeah #jeah."
When his co-presenter noted his love of hip-hop, Ryan replied, "That's right. I listen to hip-hop before my races to get amped and this next performer is one of my favorites." He then put in some sparkling mouth-wear, adding, "I even got a grill, just like him. What do you think?"