It's honest to God the most important song I’ve ever written in my life, and it has the fewest words.

[3][4]Billboard called the single "an easygoing, bluesy number, convincingly conjuring the spirit of his idol Buddy Guy.

It also entered Billboard's Hot 100 Digital Songs Chart at #63 At the 49th Annual Grammy Awards on February 11, 2007, Mayer performed "Gravity" with Corinne Bailey Rae and John Legend as the end of a medley.

The set began with Rae's "Like a Star", and continued with Legend's "Coming Home", before concluding with "Gravity".

At the ceremony, Mayer won Best Male Pop Vocal Performance for the first single from Continuum, "Waiting on the World to Change".