Steven Van Zandt (born November 22, 1950) is an American musician and actor, who frequently goes by the stage names Little Steven or Miami Steve. He is a member of Bruce Springsteen's E Street Band, in which he plays guitar and mandolin. He is also known for his roles on television dramas such as Silvio Dante on The Sopranos (1999-2007) and Frank Tagliano / Giovanni "Johnny" Henriksen on Lilyhammer (2012-2014). Van Zandt also has had his own solo band called Little Steven and The Disciples of Soul, active on and off since the 1980s.

Radio host  Since 2002, Van Zandt has hosted Little Steven's Underground Garage, a weekly syndicated radio show that celebrates garage rock and similar rock subgenres from the 1950s to the present day. As of December 2006, the show is heard on over 200 US radio stations and in some international markets. For example, in Spain it has beamed through Rock & Gol since 2007 and later on Rock FM Radio in Finland; Radio Helsinki started beaming Little Steven's Underground Garage in August 2008.  On October 20, 2011, the program recorded its 500th show in front of a sold out crowd at the Hard Rock Cafe in New York's Times Square. The guests included the band Green Day; Steve Buscemi, star of The Sopranos and Boardwalk Empire; Vincent Pastore, aka "Big Pussy Bonpensiero" from The Sopranos; actor and director Tim Robbins; and singer Debbie Harry of the group Blondie.  Program director  Van Zandt is also the program director for two radio channels for the Sirius Satellite Radio network. The channels continuously broadcast on satellite radio in the US, and worldwide on Sirius Internet Radio. One channel, named Underground Garage, has the same philosophy and musical mandate as his own radio show. On-air hosts on the channel include original Rolling Stones manager/producer Andrew Loog Oldham, singer/guitarist Joan Jett, former record executive Kid Leo, punk rock singer Handsome Dick Manitoba and rock entrepreneur Kim Fowley. The second channel, named the Outlaw Country, presents the edgier side of country music, both roots and contemporary. On-air hosts for this channel include pop-culture satirist Mojo Nixon.

Using a quote from the above article, answer the following question: what kind of music does his radio show play?
On-air hosts on the channel include original Rolling Stones manager/producer Andrew Loog Oldham, singer/guitarist Joan Jett, former record executive Kid Leo,