Paris Hilton, David Arquette, Katy Perry, Christina Millian at 1 OAK Grand Opening

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Paris Hilton at 1 OAK Grand Opening
Paris Hilton, David Arquette, Katy Perry, Christina Millian
and others celebrated the grand opening of 1 OAK Las Vegas and the GiveLove charity event at 1 OAK at the Mirage Hotel & Casino on January 27, 2012 in Las Vegas  (Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net)

Paris and Nicky Hilton at 1 OAK in Las Vegas
Paris and Nicky Hilton at 1 OAK in Las Vegas

Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.

Christina McLarty and actor David Arquette
Christina McLarty and actor David Arquette

Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.

Musician/singer Ferras at 1 OAK in Las Vegas
Musician/singer Ferras at 1 OAK in Las Vegas

Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.

Musician/singer Ferras at 1 OAK in Las Vegas
Musician/singer Ferras at 1 OAK in Las Vegas

Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.

Patricia Arquette, David Arquette and Christina McLarty
Patricia Arquette, David Arquette and Christina McLarty

Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.

Patricia Arquette and David Arquette at 1 OAK in Las Vegas
Patricia Arquette and David Arquette at 1 OAK in Las Vegas

Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.

Balthazar Getty and Patricia Arquette at 1 OAK
Balthazar Getty and Patricia Arquette at 1 OAK

Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.

Shenae Grimes and Scott Sartiano at 1 OAK in Las Vegas
Shenae Grimes and Scott Sartiano at 1 OAK in Las Vegas

Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.

David Arquette, Rosetta Getty, Balthazir Getty, Patricia Arquette, Katy Perry and Markus Molinari arrive at the 1 OAK Grand Opening
David Arquette, Rosetta Getty, Balthazir Getty, Patricia Arquette, Katy Perry and Markus Molinari arrive at the 1 OAK Grand Opening

Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.

David Arquette, Rosetta Getty, Balthazir Getty and Patricia Arquette at 1 OAK Las Vegas
David Arquette, Rosetta Getty, Balthazir Getty and Patricia Arquette at 1 OAK Las Vegas

Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.

Christina McLarty and David Arquette at 1 OAK Las Vegas
Christina McLarty and David Arquette at 1 OAK Las Vegas

Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.

Markus Molinari and Katy Perry at 1 OAK Las Vegas
Markus Molinari and Katy Perry at 1 OAK Las Vegas

Photo credit: Denise Truscello / WireImage.com www.DeniseTruscello.net.