Tyga - Rack City
This was Mustard's first breakthrough hit and is a great example of the simplicity that makes his music so appealing. With just a few bass notes and handclaps, he creates a beat that gets booties shaking and makes Tyga sound better than he ever has.
2 Chainz - I'm Different
This is the platonic ideal of a DJ Mustard beat. The simple piano figure that loops throughout gets people moving and then a blast of synth adds a wall of texture. The beat gets even more minimalistic on the chorus with 2 Chainz shouting "I'm different" over the unadorned earworm piano hook.
Kid Ink - Show Me
A great example of the Mustard style coupled with modern R&B. (Chris Brown Warning!) For more Mustard R&B see Ty Dolla Sign's Paranoid.
Mustard's latest endeavor is his critically acclaimed contribution to YG's latest album My Krazy Life. Mustard used to be YG's personal DJ since YG was "one of the first people to do my beats." They recently performed a censored version of YG's monster hit "My Nigga" on Kimmel together.