She may be 11 years away from collecting Social Security, but with an estimated fortune of $650 million and over 300 million records sold, Madonna is still a force to be reckoned with!

The pop superstar turns 54 today, and to celebrate her birthday and a quarter century worth of hits (since 1983 she's had 38 top ten singles!) we've decided to put together a photo gallery of our favorite snapshots of the Material Girl.

She is currently on tour to promote her 12th studio album, MDNA, and we've snapped her spending quite a bit of time with her latest boyfriend, 25-year-old Brahim Zaibat. She may not look like a virgin anymore, but the boys keep getting younger -- after dating 37-year-old Yankees star Alex Rodriguez in 2008 and 26-year-old Jesus Luz from 2008-2010, she started dating the French model/dancer 2 years ago.

Speaking of "Like A Virgin," remember this legendary performance from 1984?

Click the gallery below for more photos of lady M, her biceps and her boy toys!