[2] The event was set to return to the United States on 21–22 March 2020 at The Forum as a tie-in with the 2020 Kids' Choice Awards,[3] however, the event was cancelled as a result of local health concerns about the international coronavirus pandemic.

[4] This is what would have been the lineup:[3] Following on from the success of Nickelodeon SlimeFest in Australia, the music festival has since been exported to several other countries with local performers and artists.

SlimeFest events have taken place in Spain, Italy[13] and the UK[14] (September 2016).

Nickelodeon announces its first Slimefest in Asia in August 2019.

It was held at the Mall of Asia Concert Grounds in the Philippines on 28 September 2019.