Mandatory Fun is the fourteenth and final studio album by the American parody musician "Weird Al" Yankovic. The self-produced album was released by RCA Records in the United States on July 15, 2014. Yankovic had previously released Alpocalypse in 2011 and was touring in support of it when he first spoke of his next record. When he began to work on Mandatory Fun, Yankovic found himself listening to older acts, many of which he stylistically spoofed on the album.

Recorded at studios in Los Angeles and Massachusetts from 2012 to 2014, Mandatory Fun contains twelve songs, which include parodies of songs by Pharrell Williams, Robin Thicke, Iggy Azalea, Lorde and Imagine Dragons. It also features original songs in the form of pastiche, imitating the styles of the Pixies, Cat Stevens, Foo Fighters, Crosby, Stills & Nash and Southern Culture on the Skids. Yankovic composed the originals first and wrote the parodies last to allow them to be as timely as possible upon the album's release. Many artists reacted positively to being parodied; Williams remarked that he was "honored" to be spoofed by Yankovic, while Imagine Dragons advised Yankovic on how to replicate sounds in their original song.

After Yankovic's 32 years under contract, Mandatory Fun marks his first number one album in the United States. It received positive reviews from contemporary music critics. Yankovic chose not to release a lead single and instead publicized the album by launching eight music videos online during the first week of the album release through different video content portals. Among these, "Word Crimes" became Yankovic's fourth top 40 song, making him one of few artists to achieve such a feat in four separate decades.

The album won the award for Best Comedy Album at the 57th Annual Grammy Awards, Yankovic's fourth career Grammy. Following the completion of his record contract obligations and the success of the video strategy, Yankovic has avoided releasing any further studio albums, preferring the more timely releases of singles and EPs of his songs.