Lea Michele Resurfaces After Cory's Death

8/4/2013 12:41 AM PDT

Lea Michele Resurfaces After BF Cory Monteith's Death

Lea Michele had her first public outing after the tragic death of BF Cory Monteith ... to celebrate the birth of a friend's baby.

The "Glee" star has been grieving privately since news broke that Monteith had been found dead last month in a Vancouver hotel ... after OD'ing on heroin.

Lea went to the baby shower of her friend Jamie-Lynn Sigler ... dressed all in white.

Circle of life.