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If we were as gorgeous and successful as Paris Hilton, we'd be wearing a smiley face on our shirt, too!

The 30-year-old heiress, holding an adorable Tinker Bell bag, was all smiles as she left Vieve Nail Bar in Beverly Hills. No doubt, the blonde beauty deserves a little pampering!

Ms. Hilton's merchandising empire has now expanded with the creation of Paris Hilton brand stores in 31 countries. She recently told Variety that when it comes to her products, she thinks "head-to-toe" ... from concept to production. Such a success!

Read how much Paris' clothing line has grossed since 2005 ... after the jump.