When intending to study at Berklee College of Music, he received a phone call from Josh Sarubin, inviting him to audition for a new talent he just signed, a young Canadian named Avril Lavigne. Taubenfeld remained in Lavigne's band until September 2004; when he left to focus on his own music.

In 2008, Taubenfeld produced two tracks for rapper Tyga's debut album No Introduction, "Press 7" and "First Timers", the latter of which he was also featured in. On February 13, 2009, he revealed the album cover for Welcome to the Blacklist Club in the fanclub area of his site. In mid-February 2009 he released a lyric video for "Cheater of the Year". On March 31, 2009, Taubenfeld's first single, "Boy Meets Girl (song)|Boy Meets Girl", was released on iTunes and Amazon.com. In April 2009 Evan released a lyric video for "Boy Meets Girl". On August 13, 2009 he released the music video for "It's Like That" which features pictures from his fans.

He was the executive musical director for the short lived MTV show Kaya.

A video featuring scenes from Private was released for song "Evan Way", from his upcoming album. Taubenfeld also had a role in the series as Blake Pearson.

On July 26, 2009 Taubenfeld joined Metro Station, Mayday Parade, and Mitchel Musso on his second tour as a solo artist.

Taubenfeld has been touring this year with band Secondhand Serenade and obligingly appeared with a mohawk after a performance.

Taubenfeld's Christmas single, "Merry Swiftmas (Even Though I Celebrate Chanukah)" debuted at #59 on the Hot Country Songs chart for the week of December 26, 2009.

On February 10, 2010 Taubenfeld released a music video for his song "Starbucks Girl." He also announced in his weekly ustream that his Welcome to the Blacklist Club album will be available worldwide May 18, 2010

He recently teamed up with Avril Lavigne, and cowrote several songs on her upcoming fourth album, Goodbye Lullaby.

In early 2011 he teamed up with Gods Papparazzi and Breezy and recorded the song 'Quit Ur Bitchin'