Lady Gaga has spoken of her happiness at being engaged.

The singer was proposed to by actor boyfriend Taylor Kinney on Valentine's Day (February 14).

The US star showed off her dazzling ring on Instagram with delight.

Gaga has now added another photo of her piece of jewellery, writing:

"My favorite part of my engagement ring, Taylor and Lorraine designed 'T [heart] S' in white diamonds on the band.

"He always called me by my birth name. Since our very first date. I'm such a happy bride-to-be! I can't stop smiling!!"

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Watch Lady Gaga perform at the Grammy Awards below: