WSU current head coach, Ernie Kent, will serve as the evening's emcee.
Over 145 kids ages 6-14 attended the four-day camp.
Longrus played basketball at Washington State the last four seasons.
A JC-transfer, Langston will have three years of eligibility.
WSU strength coach, Scott Thom, will travel in the same capacity with the team.
WSU will host seven nonconference games in Pullman.
The rising-seniors have withdrawn their names from the NBA Draft.
This year's game will take place at Kansas City, Mo., Dec. 10.
Day Camp is June 14-17, followed by Elite Camp June 23-24 and Team Camp, June 27-30.
The four honorees of the Steve Gleason Community Service Award.
The Cougars will face either Montana or NC State in the second round.
Ergas is the fourth member of the signing class.