That leaves a lot of room for suggestions. I don't know how fast of a song you want or how traditional of a song you want. Do you want a general audition song or are you going for a specific part? My general advice is to find a songbook for sopranos and flip through to find something you like.
I think that "I Hate Men" from Kiss Me Kate is more of a mezzo song but it's uptempo while letting you still catch your breath. Continuing with Cole Porter there's "I Get a Kick Out of You" and "You're The Top" from Anything Goes.
If you're OK with just the vibe of earlier musicals you could go with "Not For The Life of Me" or "Forget About The Boy" from Thoroughly Modern Millie.
"Many A New Day" from Oklahoma could work. It's a version of traditional and while not what you usually think of as uptempo, it certainly isn't a ballad. Speaking of R&H, I like "A Cockeyed Optimist" from South Pacific as an audition song but that might be a mezzo song as well. "I'm In Love With a Wonderful Guy" could also work. Again, I have no idea what you mean by traditional but you could try "I Enjoy Being a Girl" from Flower Drum Song.
"Life Upon the Wicked Stage" from Show Boat is from a comparatively early musical if that's what you're looking for.
"Baubles, Bangles, and Beads" from Kismet isn't that fast but you could certainly sing it very "traditionally." "Not Since Nineveh" is more uptempo once you get past the opening but it's a bit weird if you want to play the ingenue.
Hope that helps!
Updated On: 8/24/15 at 10:30 PM