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(Yahoo!) - Apparently, money isn't everything. Rap superstar Drake may rank No. 6 on "Forbes"' Hip-Hop Cash Kings list, earning $20.5 from May 2011 to May 2012, but he had some equally important unfinished business to settle — completing his high school education.

The rapper, who dropped out of Canada's prestigious Vaughan Road Academy at the age of 15 to co-star on the Canadian TV show "Degrassi: The Next Generation," has spent the last five months finishing his studies and is now a graduate.

The 25-year-old artist shared the news with his 9 million Twitter followers Wednesday.

This accomplishment is also good news for Drake's mother, retired educator Sandi Graham. In 2010, the Young Money rapper said his mother was not happy with his decision to quit school.

"At one point in my life, I was a kid who was lost," he told San Francisco radio station KMEL. "I knew I wanted to do music, but, I dropped out of high school against my mother's wishes."

Drake continued to follow his "heart" and his success in acting and music landed him another dream opportunity that ultimately brought him back to his studies.

READ MORE: Yahoo! 

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