Friday marks the anniversary of Apple co-founder Steve Jobs' death at the age of 56. Among Jobs' many innovations was the iPhone, introduced in 2007, which brought Apple's signature sleek design to smartphone users.

Many celebrities, of course, are fans. But cellphones were de rigueur for the boldface set long before stars were clamoring to get their hands on the latest iPhone. And while earlier models weren't quite as clunky as, say, Zack Morris' brick phone, they were a far cry from the evolved technology of today.

Check out these photos of celebs using their flip phones, pagers and other mobile devices of yore, and take a moment to give thanks for the iPhone.

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  • Whoopi Goldberg, 1993

  • Leann Rimes, 1997

  • Sir Mix-A-Lot, 1989

  • Jessica Simpson, 2001

  • Jay Leno, 1995

  • Justin Timberlake, 1999

  • Juliette Lewis, 2002

  • Jason Biggs, 2002

  • Alicia Keys, 2002

  • Marisa Tomei, 2002

  • Melanie Griffith, 2002

  • Carmen Electra, 2002

  • Gene Simmons, 2002

  • Lisa Loeb, 2001

  • Joey Lawrence, 2002

  • Christina Ricci, 2002

  • Alyson Hannigan, 2002

  • Jewel, 2000

  • Brittany Murphy, 2001

  • Nicky Hilton, 2002

  • Jay-Z, 2001

  • Nicky Hilton, 2004

  • Sean "P. Diddy" Combs, 2002

  • Sisqo, 2000

  • Tom Hanks, 2001

  • Carson Daly, Justin Timberlake and Tara Reid, 2001

  • Andie MacDowell, 2001

  • Jennifer Love Hewitt, 2001

  • David Schwimmer, 2000

  • Liz Hurley, 2000