The winner will be announced this evening as well.
The Westmeath Rose says she's excited and nervous to take to the stage tonight.
Killucan's Grace O'Connor, a support worker for people with intellectual disabilities, is among the contestants in tonight's broadcast in Kerry.
She'll line up for two rehearsals today, one with the group, and another on her own.
Ms. O'Connor says she was front row at last night's event:
Grace is tenth in the lineup for tonight's broadcast, which gets underway at 8pm on RTÉ One.