When rocker Jon Bon Jovi sang I'll Be There For You, he meant it!

The 49-year-old Bon Jovi just opened Philadelphia’s Covenant House, a $3 million homeless shelter for teens.

PHOTOS: The Name Game - Celebs Who've Changed Their Names

The singer’s Bon Jovi Soul Foundation paid for the new building because, he said, “neglecting young, homeless people denies all of us their talent and vision."

New Jersey’s famous son has helped the homeless throughout the country, including in New Orleans and Newark, N.J.

PHOTOS: Stars Who Look Like Other Stars