《超复杂》（英语：）是加拿大唱作歌手艾薇儿·拉维尼首张专辑《展翅高飞》的首支单曲（英语：lead single），发行于2002年5月14日，由艾薇儿和创作团队The Matrix（英语：The Matrix (record production team)）（斯科特·斯波克、劳伦·克里斯蒂和格雷厄姆·爱德华兹）共同创作，由The Matrix制作。这支单曲在澳大利亚榜单上蝉联六周冠军、在新西兰和墨西哥的榜单上蝉联九周冠军；在《公告牌》百强单曲榜上最高名列第二，仅次于耐利的《Hot in Herre（英语：Hot in Herre）》；在英国的榜单上最高达到第三位。根据该单曲的榜单表现，这首歌是艾薇儿最成功的单曲之一（仅次于2007年的单曲《女朋友》），它在当年发行的单曲中以超过300万的全球销量成为了2002年最成功的单曲之一。艾薇儿还以这首歌蝉联成人四十强单曲榜榜首16周，打破了娜塔莉·安博莉亚的《Torn（英语：Torn (Natalie Imbruglia song)）》的记录。《超复杂》获得过“年度歌曲”及“最佳流行女歌手（英语：Best Female Pop Vocal Performance）”两项格莱美奖的提名。
After being signed to Arista Records（英语：Arista Records） in November 2000 upon the authorization of the label's CEO, Antonio "L.A." Reid（英语：L.A. Reid）, Lavigne moved to New York with the assistance of Reid. There, she began working on her debut album, , collaborating with a host of prime songwriters and producers. For six months, the label set up Lavigne with two co-writers, who worked with her upon Arista's instructions. Reid expected Lavigne to record folk songs because she auditioned to them in a "balladic, 'new country'" type. However, the collective failed to click "with a girl who'd just discovered guitar-based rock". For a year, nothing was working for Lavigne and was on the verge of getting dropped off Arista. The management pitched her songs written by other songwriters, but she declined, insisting she wanted to write songs herself. Lavigne relocated to Los Angeles, where she collaborated with songwriter-producer Clif Magness（英语：Clif Magness）, who gave her ample creative control in the writing process. Lavigne and Magness wrote "Losing Grip" and "Unwanted", songs that she deemed reflective of her vision for the entire album. However, Arista was not thrilled with the heavy-guitar laden songs that Lavigne was writing, prompting the label to look for other producers to match their demands.
Two years since she signed the deal, Lavigne came to the attention of the three-piece production team The Matrix（英语：The Matrix (record production team)）. Arista could not find the right direction for Lavigne, so the team's manager, Sandy Roberton, suggested that they work together. According to member Lauren Christy, they had been listening to Lavigne's early songs and felt they contained "a Faith Hill kind of vibe". As soon as they saw Lavigne coming into their studio, The Matrix felt that her musical direction was incongruous to her image and attitude. After talking to Lavigne for an hour, the singer said she wanted songs with punk rock inclinations. They told her to come back the following day, and in the afternoon during that day, they wrote a song that evolved into "Complicated" and another song called "Falling Down". They played it to Lavigne when she came back the following day, inspiring her what path she should take.
When Josh Sarubin, the A&R executive who signed Lavigne to the imprint, heard the song, he knew it was right for her. Lavigne presented the song to Reid, who agreed the musical direction Lavigne and The Matrix were taking, and set "Complicated" as the album's lead single（英语：lead single）.
Composed in the key of F major, "Complicated" is a song about how people can feign or pretend in front of others. Lavigne said about the song: "People sometimes bother me how they're not real and how they're just, like, putting on a face and being two-faced". Lavigne stated that she experienced this with both boyfriends and female friends.
The video, directed by The Malloys（英语：The Malloys）, starts with Lavigne asking her bandmates if they want to "crash" the mall. They respond with enthusiasm, and skateboard there. The video features Lavigne and the band harassing shoppers and employees, generally causing havoc around the mall; for example, Lavigne watches her bandmates try on humorous clothing which is fittingly shown as Lavigne sings the line "You come over unannounced, dressed up like you're something else".
This is intercut with footage of Lavigne performing the song at a skatepark while playing the guitar, with her band performing with her. People can be seen skateboarding around Lavigne as she and her band perform the song. As the line "You fall and you crawl..." is sung, a skateboarder can be seen falling over.
The video was shot at Eagle Rock Plaza, Los Angeles, in 2 days. During the shooting, the mall remained open.
In January 2018, the video reached over 200,000,000 views on YouTube.
The song received generally positive reviews from critics. In 2009, readers voted "Complicated" as the eighth Top single of the decade. "Complicated" also ranked at #197 in magazine's "The 500 Greatest Songs Since You Were Born". ranked it at No. 83 of the 'Top 100 Singles of the Decade'. In an AOL Radio（英语：AOL Radio） listener's poll, "Complicated" was voted Lavigne's sixth best song.
David Browne of gave the song a B- and said "Avril Lavigne's not kidding about that title, she's the epitome of the blossoming anti-Britney movement". Christina Saraceno of Allmusic described 'Complicated' as "a gem of a pop/rock tune with a killer chorus" and noted similarities between it and the Pink song "Don't Let Me Get Me（英语：Don't Let Me Get Me）". Saraceno highlighted the song as a "track pick" in a review of the album, .
On a more negative note, Sal Cinquemani of magazine described 'Complicated' as "infectious" and "more poser than punk". In a review of Lavigne's second album, , David Browne of noted that " felt like strung-together bits of Morissette songs".
As of September 2015 "Complicated" has sold 1.1 million digital copies in the US and over 3 million copies worldwide.
The Canadian single of "Complicated" has shipped over 100,000 copies in Canada, where the song has been awarded the gold and platinum single certifications by the CRIA for, respectively, shipments of at least 50,000 and 100,000 singles shipped.The single was certified 2× Platinum in Australia.
制作人员信息来自《超复杂》CD单曲内页注释。
Lavigne won Best New Artist in a Video（英语：MTV Video Music Award for Best New Artist） at the 2002 MTV Video Music Awards for "Complicated". "Complicated" won in the Single of the Year（英语：Juno Award for Single of the Year） category at the 2003 Juno Awards. In the United States, the song was nominated at the 2003 Grammy Awards for Best Female Pop Vocal Performance（英语：Grammy Award for Best Female Pop Vocal Performance） and Song of the Year（英语：Grammy Award for Song of the Year）; it lost both awards to Norah Jones's "Don't Know Why（英语：Don't Know Why）". In Brazil it was nominated in the category of best international video at the 2003 MTV Video Music Brazil.
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