Some celebrity nose jobs are painfully obvious, but a lot of famous nose jobs are so subtle you hardly notice.

Whether these stars got rhinoplasty for a medical reason (Ashley Tisdale claims she had a deviated septum) or had cosmetic motivations that they may or may not even admit to, they all at least appear to have gone under the knife. And some of these celebs were probably better off without getting any work done!

Blake Lively

Before: 2005 / After: 2013

Frazer Harrison / Tim P. Whitby, Getty Images

Ashlee Simpson

Before: 2004 / After: 2013

Frank Micelotta / Frederick M. Brown, Getty Images

Ashley Tisdale

Before: 2004 / After: 2013

Frazer Harrison (2), Getty Images

Heidi Montag

Before: 2006 / After: 2013

Bryan Bedder / Ethan Miller, Getty Images

Megan Fox

Before: 2004 / After: 2013

Evan Agostini / Dimitrios Kambouris, Getty Images

Kim Kardashian

Before: 2006 / After: 2013

Katy Winn / Ethan Miller, Getty Images

Vivica A. Fox

Before: 1999 / After: 2013

Brenda Chase / Jason Kempin, Getty Images

Joan Rivers

Before: 1960 / After: 2013

Hulton Archive / Bryan Bedder, Getty Images

Tori Spelling

Before: 1996 / After: 2013

Alberto E. Rodriguez, Getty Images

Lance Bass

Before: 2000 / After: 2013

Chris Weeks / Jason Merritt, Getty Images

Victoria Beckham

Before: 1997 / After: 2013

Hulton Archive / Stuart C. Wilson, Getty Images

Michael Jackson

Before: 1972 / After: 2009

Hulton Archive / Tim Whitby, Getty Images

Mariah Carey

Before: 1990 / After: 2013

Frank Micelotta / Jamie McCarthy, Getty Images

Beyonce

Before: 2000 / After: 2013

Kevin Winter / Larry Busacca, Getty Images

Haylie Duff

Before: 2004 / After: 2012

Peter Kramer / Ilya S. Savenok, Getty Images

Adele

Before: 2008 / After: 2011

Chris Jackson / Tim Whitby, Getty Images

Dianna Agron

Before: 2007 / After: 2013

Michael Buckner / Dimitrios Kambouris, Getty Images

Mickey Rourke

Before: 1989 / After: 2013

Diane Freed / Angela Weiss, Getty Images

Britney Spears

Before: 1999 / After: 2013

Hulton Archive / Isaac Brekken, Getty Images