Over the last 20 years, Zulla has been part of a diverse collection of projects including mixing major label and independent albums and singles, producing and composing songs and music for television and film, as well as audio for video sound and post production.

[citation needed] He has mixed for many artists including Rod Stewart, Kelly Clarkson, Jessica Simpson, Backstreet Boys, Clay Aiken, Kenny G, Diana Ross, Michael Bolton, Teddy Geiger and Heather Headley.

[4] As part of the American Idol team in the early seasons, Zulla recorded and mixed the show’s very first single.

Kelly Clarkson’s “A Moment Like This” went to #1 on the Billboard Hot 100 chart, breaking the Beatle’s longstanding record as the quickest climb to #1.

[8] Zulla was the pop music producer for the Steven Spielberg created NBC show “Smash,” producing the cover songs with the show's stars Megan Hilty, Katharine McPhee, Jeremy Jordan and Tony award winners Christian Borle, Leslie Odom Jr. and Bernadette Peters.