Planet X (Derek Sherinian album)
 Planet X is the first studio album by keyboardist Derek Sherinian released on July 13 1999 through Magna Carta Records. After Sherinian left progressive metal band Dream Theater in January of that year he joined drummer Virgil Donati in forming a band also named Planet X. The band's own first album Universe was released in 2000 with guitarist Brett Garsed later playing on their 2007 album Quantum.