New Year with his friends, much to their pleasure. The Fox Network announced on April 4, 2012, that Ashton Kutcher as well as other cast members of That '70s Show had signed on to reprise their roles for a special Fox 25th anniversary reunion special. The episode aired on April 22, 2012, as part of a two-hour special. The cast reflected on the show after 100 episodes. In the sequel series That '90s Show, set in 1995, Kelso and Jackie got back together and have a teenage son named Jay and are about to marry for the third time. Personality Among Kelso's most famous personality traits are conceit and sheer stupidity, performing a great number of idiocies on a regular daily basis. Despite his stupid nature, he shows moments of shining intellect, demonstrating the ability to do fast mathematical division and fixing Red's Pong machine. During a flashback scene, it is implied that Kelso used to be a bookish, motivated student until Hyde introduced him and Eric to marijuana when they were in junior high. Throughout the series, Kelso has made a large quantity of moronic quotes and performed many dimwitted blunders, and possesses numerous infantile qualities such as enjoying Christmas specials deemed childish by his peers and fussing when something is preventing him from viewing them. It also been hinted Kelso loves dogs. Like the other teenage male central characters of the series, Kelso also possesses an abundance of "horny" personality traits and appears especially fond of the idea of having sexual relations and the willingness to spoil his virginity results in the impregnation of a librarian named Brooke and the birth of a little girl named Betsy toward the end of the series. He fancies himself as quite attractive and capable of winning the affections of women such as Jackie Burkhart, with whom he has shared an on-again/off-again relationship throughout the course of the series. Kelso also likes bands such as Led Zeppelin, Foghat, Deep Purple, Aerosmith, KISS, Ted Nugent, Pink Floyd, AC/DC, The Rolling Stones, The Who and Molly Hatchet. It is revealed in the Halloween special that Kelso is a year older than the other teenagers due to being held back a year in the first grade, which angers Hyde knowing that all along Kelso is legally allowed to purchase beer for the teenagers. It is clear from Jackie and Kelso's relationship that Kelso definitely is