Leigh Daniel Avidan (born March 14th, 1979), better known as Danny Sexbang of the band Ninja Sex Party and commonly referred to as Danny or Dan, is the co host of Game Grumps and a member of Steam Train. He joined the show following Jon's departure and assumed the title of "Not-So-Grump". Danny partners with his friend Arin Hanson (AKA Egoraptor), on Game Grumps, taking the title "Not-So-Grump." He was also the host of Steam Train with Ross O'Donovan. He joined the Grumps on June 25, 2013, taking place of Jon Jafari when he left. Shortly after, Danny started to slowly leave Steam Train until he was eventually replaced by Barry and other Grumps. Danny also has a YouTube channel of his own called Ninja Sex Party, where he posts music videos for his band of the same name.Before Danny was in Game Grumps or Ninja Sex party, he was in a britpop band named The Northern Hues, a Philadelphia-based sextet, which was created in early 2002 by guitarists Aron Brand and Jeff Rains. Dan Avidan joined the two shortly thereafter, writing songs for many months in North New Jersey and providing vocals. In the Spring of 2003 the band broadened to include multi-talented Alex Yaker and drummer Ian Creech. Their website is now defunct, though their Myspace page remains.
After The Northern Hues, Danny was also in an electronica duo called Skyhill with Peter Lennox. The following paragraph is taken from their website http:
"Brooklyn-based Skyhill was formed in the winter of 2006, when Dan Avidan and Peter Lennox connected through their love of atmospheric, beat-heavy anthems. Writing & recording throughout 2006 and early 2007, with Dan on vocals and Peter on guitars & keyboards, the band completed what would become their self-produced debut album, Run With The Hunted, in the spring of 2007."Danny and Brian in their NinjaSexParty costumes. Danny is the lead singer of the band Ninja Sex Party. He has a "sidekick" named Brian, or Ninja Brian, who is a pianist and keyboardist. They have three albums out, "NSFW," "Strawberries and Cream" and "Attitude City." They started out at a UCB as a musical guest at his storytelling teacher's show, "Strip Stories". In the summer of 2014, Ninja Sex Party played their largest concert ever at the NerdHQ. Danny, Brian and Arin have formed a band called Starbomb, and have released two albums. They normally make parody songs of various video games. Arin made a guest appearance in the Ninja Sex Party concert at NerdHQ. He introduced the duo and later performed "Crasher-vania" with them. This performance marked the first (and, so far, only) live performance by Starbomb. Danny and Arin had been friends for a month, and Arin created animations for NSP's 2011 song Dinosaur Laser Fight and provided voiceovers for 20 Haikus in 20 Days series. Dan was first mentioned by the Grumps back in the Banjo Kazooie playthrough, when Arin begins to tell a story about going to karaoke with Danny and Ninja Brian towards the end of part 4, "Who Farted?," and continues the story in the next episode, "Jon's Favorite Part." He was also briefly mentioned in the Mario Party 8 episode, "It's Retro," and the Pocky & Rocky episode "Rocky Road." Danny made his first actual appearance in the video "Ode to Jon," and his first appearance as a Grump in the Mike Tyson's Punch-Out!! playthrough. Unofficially, his "Mayor Luigi" joke in the Super Mario Bros. 2 episode "A Fine Day For Mayoring" represents a point where general acceptance of the new "Not-So-Grump" shifted greatly in his favor.