Simon Cowell was not his usual self at the National Television Awards on Wednesday night.

His face looked a little puffy and his eyes were more currant-y than usual.

Simon Cowell at the NTAs 2015 (Ian West/PA)
Simon Cowell at the NTAs 2015 (Ian West/PA)

Maybe baby Eric’s teething and he hasn’t been getting much sleep.

Cowell on stage at the NTAs 2015 (Yui Mok/PA)
Cowell on stage at the NTAs 2015 (Yui Mok/PA)

But we couldn’t help wondering how his looks have changed over the years. And then we realised they haven’t.

We don’t know what his secret is – but Simon Cowell hasn’t aged in 14 years. Check it out.

2014

Simon Cowell in December 2014 (Doug Peters/EMPICS)
Simon Cowell in December 2014 (Doug Peters/EMPICS)

2013

Cowell in December 2013 (Richard Shotwell/Invision)
Cowell in December 2013 (Richard Shotwell/Invision)

2012

In December 2012 (Vince Flores/AFF/EMPICS)
In December 2012 (Vince Flores/AFF/EMPICS)

2011

In December 2011 (Dan Steinberg/AP)
In December 2011 (Dan Steinberg/AP)

2010

In December 2010 (Doug Peters/EMPICS)
In December 2010 (Doug Peters/EMPICS)

2009

Feburary 2009 (Dan Steinberg/AP)
Feburary 2009 (Dan Steinberg/AP)

2008

November 2008 (Suzan/EMPICS)
November 2008 (Suzan/EMPICS)

2007

March 2007 (Paul Smith/EMPICS)
March 2007 (Paul Smith/EMPICS)

2006

Simon Cowel in November 2006 (Doug Peters/EMPICS)
Simon Cowel in November 2006 (Doug Peters/EMPICS)

2005

December 2005 (Ian West/PA)
December 2005 (Ian West/PA)

2004

December 2004 (Doug Peters/allactiondigital.com)
December 2004 (Doug Peters/allactiondigital.com)

2003

November 2004 (Doug Peters/allactiondigital.com)
November 2004 (Doug Peters/allactiondigital.com)

2002

September 2002 (Jim Ruymen/allaction.co.uk /EMPICS)
September 2002 (Jim Ruymen/allaction.co.uk /EMPICS)

2001

November 2001 (Suzan/allaction.co.uk /EMPICS)
November 2001 (Suzan/allaction.co.uk /EMPICS)

When we were looking back through the archives for pictures of Simon, we found his favourite look, including his trusty aviator sunglasses.

(See Li/Demotix)
(See Li/Demotix)

So what’s he hiding behind those shades? Or maybe he’s just got a picture in the attic…