Room for Squares (2001): On the album cover, Mayer sports boyishly short hair that makes him look like a frat boy. By the time his video for "Your Body Is a Wonderland" debuted a whole year later, he had grown the do to twice its original length and found a product that worked for him much like Grant's "Will" character in About a Boy, which had been released the previous May. The single, like the movie, was a huge success.
Heavier Things (2003): The album cover for Heavier Things shows Mayer with a haircut not entirely dissimilar to what he sported in the "Your Body Is a Wonderland" video, but by the time "Clarity" was released as a video in March, Mayer had gone retro-Grant, combing his moppish hair forward like Grant did in Sense and Sensibility, back in 1995. The mop was passé by 2003, though, so in November 2004, he released the video for "Daughters" wearing the same coif Daniel Cleaver (Grant) had in that month's Bridget Jones: The Edge of Reason. Consequently, "Daughters" turned out to be much more successful for him.
Continuum (2006): With Continuum, Mayer decided to go retro-Grant again; this time, with greater success. By growing his hair to a wavy, chin-reaching length, he embraced the 2001 Bridget Jones' Diary Daniel Cleaver the two-year period when Grant, along with Small Time Crooks, thought he'd find out how the hipsters lived by going long. It's working for Mayer, though, as Continuum not to mention his hair has made him more famous than ever.