Jessie Mueller, Keala Settle, Christopher Fitzgerald and the cast of Waitress performed four Sara Barelilles tunes from the new musical, Ethan Slater and Tom Higgenson (from pop-punk band Plain White T’s) give a preview of “BFF” from The SpongeBob Musical and the cast of Tuck Everlasting offered a first look at their show. Seth Rudetsky and Jack Plotnick’s Disaster! released show highlights, as did Off-Broadway productions Straight and Smokefall.