Carl Barât and Stuart Braithwaite named the song the worst ever. Dean Ween said: "It's as bad as music gets…. Everything about the song is so awful that if I sat down and tried to write the worst song ever, I couldn't even make it 10 percent of the reality of how awful that song is." Tara Dublin in The Huffington Post wrote that it is "without question, the worst song of the 1990s". In 2019, About.com featured it in their ranking of "The Best 100 Songs From the 1990s". Bill Lamb remarked that the song "seemingly appeared out of nowhere, becoming a neo-folkie hit first on modern rock radio stations and then on the pop charts. Although it only reached number 11, it has been a radio fixture ever since." Music video A music video was produced to promote the single. It was directed by American film director Morgan Lawley and features the band, dressed in punk clothing, performing the song as they stand in a living room set decorated with paintings. In between, there is footage of the band in a park and a playground. It was nominated in the category for Best Alternative Rock Video at the MTV Video Music Awards. The video was later published on YouTube in February 2011. It had generated more than 1 billion views as of September 2021. Track listings US and Australian cassette single "What's Up?" (LP version) "Train" (LP version) European 7-inch and cassette single "What's Up?" "What's Up?" (piano version) European and Australian CD single "What's Up?" (edit) – 4:16 "What's Up?" (remix) – 4:51 "Train" – 3:47 "What's Up?" (piano version) – 4:09 Credits and personnel Credits are lifted from the Bigger, Better, Faster, More! album booklet. Studios Recorded at The Plant (Sausalito, California) Mixed and overdubbed at The Bunker (Malibu, California) Mastered at Precision Mastering (Los Angeles) 4 Non Blondes Linda Perry – writing, vocals, acoustic and electric guitar Roger Rocha – guitar Christa Hillhouse – bass, vocals Dawn Richardson – drums Other personnel David Tickle – production, recording, mixing Mark Hensley – engineering Stephen Marcussen – mastering Charts Weekly charts Year-end charts Decade-end charts Certifications DJ Miko version Italian disc jockey DJ Miko covered the song as a dance track in 1993 (retitled without the question mark) with vocals provided by British singer Louise Gard. Although the song was released as a stand-alone single, it later