Drake being Investigated by LAPD for underage parties at Mansion

- POLICE in Los Angeles are investigating whether parties that were held at Drake's Hidden Hills Mansion and Tyga's Calabassas Mansion - were serving UNDERAGE GIRLS, as young as 16 years old - alcohol.

Here's what we know. For the past FEW MONTHS, Tyga has been throwing impromptu PARTIES at his Calabassas mansion. And at those parties, Kylie Jenner and some of her HIGH SCHOOL FRIENDS attended. Drake's OVO crew members have ALSO been throwing parties at Drake's crib, while Drake was AWAY ON TOUR.

Well it turns out that ONE OF KYLIE'S FRIENDS FATHERS . . . broke into her phone . . . and was APPALLED by the photos that he saw. Which allegedly include the 17 year old girl DRINKING ALCOHOL. Because the girl is a MINOR, we are not going to reveal ANY information about her.

MediaTakeOut.com has learned that the girls father - who is VERY RICH AND POWERFUL - immediately called the police and asked them to look into the parties at the rappers' homes.

Developing . . .