Gaga, whose real name is Stefani Germanotta, announced the couple's engagement on Instagram with an intimate snap of the ring and the caption:
'He gave me his heart on Valentine's Day, and I said YES!'
The pair has been dating since 2011, when they collaborated on the music video for her song 'You And I', and she has since said in interviews that she knew he was 'the one'.
Congratulations to the happy couple - we can't wait to see the wedding dress that this creative gal comes up with!
- Foreplay tips: 16 foreplay ideas to spice up your sex life
- How to orgasm: 8 steps to your best orgasm ever
- Top 40 sex positions
- Sex positions during pregnancy
- Celebrity engagement rings
- Ladies for George: who's the perfect match for single Mr Clooney?
- Bringing back the intimacy: little tips to try with your man
- Celebrity weddings
- Our favourite married celebrity couples