Help Me!

Brittany • Brittany • 24 • Tom is my saving grace. I love you <3 6.30.14 <3
Help Me! 
Boyfriend is planning Valentine's Day surprise and he won't give me enough hints... 
He won't even tell me whether or not to dress up or be casual...
Only hint is this one word "lion". 
I already made a few guesses and it's not a zoo trip or lion king the musical... 
What do you think it could be???