Paris Hilton arrives at a party celebrating the new mobile service Helio and benefiting Heal the Bay in West Hollywood, Calif. on Wednesday, Aug. 8, 2007.
Event host Amy Smart is looking gorgeous at Helio party
Party hosts Amy Smart and Emmy Rossum poses together
Emmy Rossum
Rumer Willis
Rumer Willis and Amy Smart posing together
James Kyson Lee
Freddy Rodriguez
Bai Ling
