Apollo

In Greek Mythology, Apollo is the Olympian god of the sun (especially from Hellenistic poetry, where he usurped the role of Helios), prophecy, music, truth and the arts.

Biography
Apollo and his twin sister, the hunting goddess Artemis, were born to Zeus and the goddess Leto. When Hera sent a giant serpent to attack Leto to prevent her giving birth, she gave birth to Artemis and Apollo on the island of Delos.

In adulthood, Apollo battled the serpent (which was called Python) and killed it; he then built a temple on the site, which would soon become the temple of Delphi.

Role in Greek mythology
Apollo has multiple roles in classical mythology. He is the god of music, and is often depicted with a lyre (an ancient instrument similar to a guitar), the god of prophecy, arts and the truth. He was also the sun god and pulled the sun across the heavens on a chariot pulled by griffins (he became associated with the sun in Hellenic and Roman poetry, after he took the role of Helios).