The list of options is long and the rules are simple - contestants will wear 1970s vintage clothing and sing solo.
"Singers may use one plug-in for their performance and that can be a recorded backing track, electric guitar or keyboard.
"You may use another musician to accompany you on that guitar or keyboard though you must solo sing, so no harmonisation."
Entrants will perform their chosen song at Lucky Bar + Kitchen on the evening of Thursday, December 5, and a judging panel will select first, second and third contestants to win cash prizes.
"The judges will be looking for quality of vocal performance, delivery and personality as well as dress and presentation," Jellyman said.
"The winner and runner-up will sing two songs on the main stage at the Whanganui Vintage Weekend Riverside Shindig on January 19."
Enter by visiting the Riverside Shindig section at whanganuivintageweekend.nz or email bruce.jellyman@gmail.com.