Ray J

Turns to Brandy for Support,

En Route to Whitney Funeral

2/17/2012 11:52 AM PST BY TMZ STAFF

With his famous older sister Brandy by his side, a somber Ray J walked through LAX moments ago to board a plane bound for Whitney Houston's "Home Going" ceremony in New Jersey.

The siblings strolled quietly through the airport along with their mother. At one point, Brandy put her arm around Ray J as photogs fired off question after question about his relationship with Houston.

Earlier today, Ray J released a statement about Whitney ... saying her smile will "live in my heart forever."