Tirren Staaf, otherwise known as Pegz (or Pegasus), is an Australian hip hop artist and producer hailing from Melbourne, Victoria. He was the CEO of Obese Records—the record label responsible for artists such as Hilltop Hoods, Downsyde, and Bias B.

Tirren Staaf has said that he was named after Tiran Porter, former member of the Doobie Brothers.

Pegz has been a part of the Australian hip hop scene since 1992, and has released four full-length studio albums. As a teenager he was first a graffiti artist before becoming a rapper.

In 2000, he got a job at Obese Records, a specialist hip-hop music store in Prahran.

He released his first recording, an EP, Pegasus, on the Obese label in 2001, followed by a studio album, Capricorn Cat in 2003 and Axis in 2005.

In 2005, Pegz toured nationally with Australian Hip Hop Milk Bar Stars (Pegz, Muph, DJ Bonez and Plutonic Lab).

Upon releasing his third solo album, Burn City, in 2007, Pegz nominally retired as a solo artist to concentrate on managing Obese Records.

'This will be my last solo effort I think; I'm not in the mental space to be juggling everything right now, but we'll see what happens. I'm always writing. Always.'