"Good morning and hello! It's great to finally be on Instagram, been a long time coming but I can't wait to start sharing all my special moments with you.
"Thank you for all your birthday messages so far. Looking forward to a great day with friends and family x (sic)" he captioned the photo, where he is seen lying on his bed.
Beckham hosted a 250,000 pound luxury anniversary celebration at a six-star resort just outside Marrakech, Morocco.