Tiffani Thiessen and Mario Lopez on Ellen


We always love a surprise on "The Ellen DeGeneres Show."

Thursday's episode was guest hosted by Mario Lopez, and he gave "Saved by the Bell" fans something to cheer for when he brought on his former co-star Tiffani Thiessen. She starred as cheerleader Kelly Kapowski on the late '80s/early '90s sitcom, while Lopez played jock AC Slater. The two got a chance to reconnect while mixing cocktails and promoting Thiessen's new cookbook.

While the duo was missing the rest of the Bayside gang, Thiessen and Lopez's reunion was enough to get us smiling. They joked about their days at the fictional Bayside High, when they or may not have been doing some drinking. Watch below.

Lopez is also stepping in as the guest host of the Aug. 31 episode of "Ellen." He has been on the show numerous times over the years, so he's pretty much a seasoned vet at this point. We'll see what other surprises he has in store.

"The Ellen DeGeneres" show airs on weekdays.