National signing day is Wednesday, and Boise State coach Bryan Harsin took to Twitter on Tuesday to announce his biggest signing.

National signing day is Wednesday, and Boise State coach Bryan Harsin took to Twitter on Tuesday to announce his biggest signing.

Left Shark, who played a prominent role in Katy Perry's Super Bowl halftime show, will likely be the Broncos' marquee signing -- unless they can reel in a commitment from Giant Mechanical Lion.

- Stanley Kay