Wave Of Applause just egded out Catalpa Sail to justify market confidence in the opening juvenile maiden at Leopardstown.
Tommy Stack 's charge was sent off even-money favourite but had to work to nab Dermot Weld's gelding late on.
Wayne Lordan got a good tune out of the Royal Applause newcomer inside the final furlong to get up in the dying strides for a head success.
"She's being going nicely at home - working well. Ideally she would want a bit further," said Fozzy Stack afterwards.
"They finished a long way in front of the third. She's a nice filly and quite a big filly.
"We could look at the Group 3 at Naas (Juvenile Sprint Stakes June 7th) or the Balanchine Stakes at the Curragh on Derby weekend."
"She's a smart filly. She wouldn't be an Ascot filly as the races there wouldn't suit her. The Queen Mary would be a bit sharp."
