AlDub (sometimes known as MaiDen) is a fictional supercouple pairing (or "love team" as it is known in the Philippines) of Alden Richards and Yaya Dub from the Philippine daytime variety series Eat Bulaga! Its name is derived from a portmanteau of the tandem's character names, namely Filipino actor Alden Richards, who portrays a fictionalized version of himself, and Yaya Dub (real name Divina Ursula Bukbukova Smash, a playful reverse-acronym of Dubsmash), portrayed by Filipina voice-dubbing actress Maine Mendoza. Both joining the program's cast in 2015, Richards first appeared as a host of Eat Bulaga!‍ '​s various segments, such as the "That's My Bae" portion; while Mendoza originally appeared as Yaya Dub in the show "Juan for All, All for Juan" segment. Exclusively interacting through the show's split screen frame, the AlDub couple have yet to meet personally for the first time, only communicating through dubbing audio samples of popular songs, films and TV series as well as handwritten messages on screen. On September 5, 2015, the couple finally saw each other for the first time after their respective performances in Bulaga Pa More! Dabarkads edition wildcard round.
A 30-minute short soap opera parody pegged as KalyeSerye (Street Series) was created within the "Juan for All, All for Juan"'s segment for the tandem, featuring live improv acting from the AlDub supercouple and its additional characters–Filipino comedians Wally Bayola, Jose Manalo, and Paolo Ballesteros as various characters. The segment proved to be a success in both broadcast television and social media, resulting in a significant increase of viewership and popularity of Eat Bulaga!. In addition, it has also contributed to the careers of Richards and Mendoza.