Matthew Graham (known on-air as "Mad Mat") is strictly a radio presenter and rock DJ on the digital network GFM Radio.

• The Slot: He presents Mad Mat's Rock Show every Thursday night from 8:00 PM to 10:00 PM.
• The Music: His show is a dedicated two-hour specialty block that shifts the station completely away from its standard music loops. He focuses entirely on a high-energy mix of Hard Rock, Heavy Metal, Alternative, and Indie anthems.
• Signature Style: He runs recurring segments like "Rock On & Rock Out," where he takes direct listener shout-outs and request tracks to play massive rock anthems back-to-back.