Aaron Tyler (born May 22, 1967 in Compton, California) is an American rapper better known by his stage name MC Eiht.

A pioneer of gangsta rap, he first emerged as one of the lead rappers of Compton's Most Wanted (CMW), and later became an actor and solo MC. He is best known in the acting world for his role as "A-Wax" in The Hughes Brothers' film Menace II Society, and for providing the voice of Ryder in the video game Grand Theft Auto: San Andreas. CMW is set for a reunion which will feature on DJ Slip's next album The Minority Report. MC Eiht also had a role in 1998's movie, Thicker than Water as Lil Ant with Mack 10, Fat Joe, Ice Cube, WC, CJ Mac, Big Pun, and Cypress Hill's B-Real. One of his most famous songs would most likely be Straight Up Menace from the motion picture Menace II Society. This song is considered by many to be one of the greatest rap songs of all time. He is best known for his catchphrase "Geyyeahh".

DJ Quik and MC Eiht constantly dissed each other while both had growing popularity at the time. The feud was fueled when DJ Quik gave shout outs to C.M.W on an early mixtape, and MC Eiht interpreted it as a diss, they say he may have been jealous because rival DJ Quik was making a buzz in Compton. Eiht also had ties to the Crips (He is a member of Tragniew Park Compton Crips.), while Quik had ties to the Bloods (He is a member of Tree Top Piru, another gang from Compton.). The beef was ended when Eiht was residing at Snoop Dogg's house, where Snoop got Eiht and Quik together and they squashed the beef that had brewed for many years. MC Eiht can be seen in the Wu-Tang Clan's video for "Can It All Be So Simple" and Ol' Dirty Bastard's "Shimmy Shimmy Ya" and the remix.

In recent years, MC Eiht's career in the rap game has declined, ever since former Rival DJ Quik dissed him with Dollaz & Sence, since than MC Eiht has become involved in a number of side projects when he is not releasing solo albums - including two collaboration albums with Spice 1 (The Pioneers and *Keep It Gangsta in 2004 and 2006, respectively), a record with Brotha Lynch Hung (The New Season in 2006), and another Compton's Most Wanted album (Music To Gang Bang, also in 2006). More recently, MC Eiht has begun working with Snoop Dogg, appearing on two songs from Snoop's new album Tha Blue Carpet Treatment and also participating in Snoop's side project Warzone along with Goldie Loc and Kam.