I loved using songs during lessons (and now on CPD courses) often at the beginning to set the scene as the learners arrive or at the end when they're reviewing/reflecting on their learning.
Other educators obviously felt the same, and suggestions came in so I thought I'd collect some here. The IOP PTNC email list also discussed songs to use in lessons a while ago - as you can see, Physicists have obviously given the topic some considerable thought.
If you have any other suggestions, let me know and I'll add them in.
Biology
Reproduction - Grease 2
Let's talk about sex - Salt n Peppa
The Circle of Life - The Lion King
Breathe - Prodigy
Dry bones (the knee bones connected to...)
The drugs don't work - The Verve
Food, glorious food - Oliver
Chemistry
The Elements Song - Tom Lehrer (to be played at every opportunity)
Opposites Attract - Paula Abdul (Electrolysis)
Mole day music video http://www.tes.co.uk/teaching-resource/Mole-Day-Music-Video-from-the-Virtual-School-6297022/
Physics
Under Pressure - Queen
Opposites Attract - Paula Abdul (electrostatics, or magnetism)
Collide - Leona Lewis
Defying Gravity - Wicked
Good Vibrations - Beach Boys 
You spin me right round - Dead or Alive
Spinning around –  
                                Kylie
Nine million 
bicycles - Katie Melua 
Adjusted bicycle version! Correct 
Physics 
It’s electricifying - John Travolta 
Lightning – The Wanted 
Can u feel the 
force - The Real Thing
Supernova – Oasis           
                                Oasis
Supermassive black hole - 
Twilight 
The sun is a mass of 
incandescent gas - Dottie Evans 
Wonderful World – 
Louis Armstrong 
Chain Reaction – Diana Ross 
Atomic – Blondie
Quark 
song                                          http://www.youtube.com/watch?v=U0kXkWXSXRA
Danger High Voltage - Electric Six 
I've got the power - Snap! 
Sound of da police - KRS One 
He ain't heavy he's my brother - The Hollies (for gravity) 
Ray of Light - Madonna 
Spectrum - Florence and the Machine 
 Moment like this - Leona Lewis 
Perfect moment - Martine McCutcheon  
Magic moments - Perry Como
Speed and Velocity - They might be Giants  
Why Does the 
Sun Shine? - They Might Be Giants 
Somewhere over the 
rainbow - Israel Kamakawiwo Ole   Judy Garland
Speed of light – Coldplay 
Our Velocity - Maximo ParkApply some pressure - Maximo Park
Starlight - Muse
Black hole sun - Soundgarden
Strange Charm - Hank Green
Large Hadron Rap http://www.youtube.com/watch?v=j50ZssEojtM
The Particle Physics song (Higgs, Higgs glorious Higgs)
And good bands:
Astrocapella http://www.astrocappella.com/songs.shtml
They might be Giants 'Here comes science'
Kraftwerk
