In 2001, Mraz released the live acoustic album Live at Java Joe's, performing with percussionist Rivera and bassist Ian Sheridan.The album featured Mraz's freelancing vocal style and several songs he would later re-release, including "1000 Things", "You and I Both" and "Halfway Home." The album was made available to download on i Tunes on March 11, 2008, under the title Jason Mraz: Live & Acoustic 2001.Soon after moving to San Diego in 1999, Mraz became a roadie for the band Elgin Park.He met future band member Toca Rivera at the coffee house Java Joe's in the Ocean Beach neighborhood of San Diego, where he performed once a week for nearly three years, building a following in San Diego and online.The album peaked at number 5 on the Billboard 200 and sold over 100,000 copies in the US. It debuted at number 3 on the Billboard 200 and was an international commercial success primarily due to the hit "I'm Yours".In 2008, Mraz released his third studio album, We Sing. The song peaked at number 6 on the Billboard Hot 100, giving him his first top ten single, and spent a then-record 76 weeks on the Hot 100.Mraz then released two live EPs: the Life Is Good EP on October 5, 2010, and the Live Is A Four Letter Word EP on February 28, 2012.Love Is a Four Letter Word was released on April 13, 2012.
On December 16, 2012, Mraz headlined the Milestone Concert in Myanmar to raise awareness about human trafficking, the first foreign artist to play an open-air concert in Myanmar.
He has earned Platinum and multi-Platinum certifications in over 20 countries, and has toured in North America, South America, Europe, Asia, Australia, the Middle East and parts of Africa.
As of July 2014, Mraz has sold over seven million albums,) His parents, Tom (Tomáš) Mraz and June, divorced when he was five years old, but he maintains that he had an idyllic childhood, saying, "My hometown of Mechanicsville was very American.
The song was featured as a part of ABC's "Be Ugly in '07" campaign.
Also that year, on American Idol, contestant Chris Richardson performed a cover of Mraz's "Geek in the Pink".
2006 saw the release of Selections for Friends, the live, online-only album recorded during the Songs for Friends Tour.