The Madcap is a modern hard rock band founded in 2015 by guitarist/songwriter Deniz Sayman and vocalist İzgi Gültekin. Known for their explosive energy, catchy anthems, and commanding live shows, they’ve made a name in Turkey’s rock scene and beyond.

After reaching the Rising Star 2015 semifinals and winning Hard Rock Rising Local Champion 2016, the band released their debut album The Madcap Rising. They've played major stages including Zeytinli Rock Festival (4 times, 10K+ audiences) and opened for legends like Glenn Hughes, Firewind, and Masterplan, alongside 7 shows at NATO bases.

Their second album Beat the Destiny (2024), featuring Tommy Johansson (Sabaton, Majestica), expanded their global reach. In 2025, they performed with Dirkschneider (Zagreb) and Mike Tramp’s White Lion (Istanbul).

Recognized as global talent by Arts Council England, The Madcap relocated to London on the UK Global Talent Visa, now continuing their hard rock journey with new music, videos, and international shows.