Derek Sherinian is an American keyboardist and composer, known for his work in the progressive rock and metal genres. Born on August 25, 1966, in Laguna Beach, California, he gained fame as a member of the band Dream Theater and later formed his own group, Planet X. His unique style blends elements of jazz, rock, and classical music. Throughout his career, Sherinian has collaborated with various artists, including Alice Cooper, Billy Idol, and Zakk Wylde. He is recognized for his virtuosic playing and innovative use of technology in music. Sherinian has released several solo albums, showcasing his talent and versatility as a musician.