OSU Campus. 10:00 am – 4:00 pm – Mom’s Day Craft Fair in the  Student Union Atrium – Craft fair vendors are sure to have something for everyone including; Hand-painted frames and décor, hand-painted OSU décor, jewelry, clothing, fair trade items, licensed kitchen wares, aprons, towels and potholders, handmade soaps, bath salts and fizzes, OSU ornaments, frames and signs, clipboard frames, Tupperware, clocks, and more. This event is free. 2:00 pm – Campus CompOSUre Fashion Show on the Student Union Plaza – The University Store at the Student Union is hosting its fourth annual Campus CompOSUre fashion show.  This event is free.  4:30 pm (Doors)/ 5:30 pm (Show) – Spring Sing – Gallagher-Iba Arena- As a part of Mom’s Day festivities, fraternity and sorority groups pair to perform choral-style productions.  Each production lasts about six minutes.  Groups use the theme to create their own unique story line.  Group acts are judged on musicality, theme originality, costumes and choreography.  The top five acts receive awards.  Proceeds from Spring Sing benefit Coaches vs. Cancer.  The Coaches vs. Cancer program empowers coaches, their teams, and communities to join the fight against cancer by participating in awareness efforts, advocacy programs and fundraising activities. http://gogreek.okstate.edu/spring-sing . 7:30 pm – The OSU Jazz Festival Feature Concert – OSU Jazz Ensemble will perform under the direction of Dr. Ryan Gardner with guest artist Stockton Helbing, drums. Tickets for this performance are available in the Music Department Office – 132 Seretean Center or online at http://marketplace.okstate.edu