It's the second week of Miriam O'Callaghan's summer chat show and an entertaining enough lineup in store.

First up, Miriam will be chatting to Mayo man Louis Walsh about his return to the X Factor and how he convinced Simon Cowell to bring auditions back to Ireland after four years.

Also on the show, former jockey and broadcaster Tracy Piggott will drop by on the eve of her first professional race in 28 years, in aid of the Injured Jockeys Fund.

Forget them though, the one and only Francis "does anyone need the tooiilet?!" Brennan will be in to chat about his new series kicking off on Sunday, which sees him bring an Irish tour group to India. No doubt he will make for a fun interview.

With the Olympics just around the corner, Miriam will meet four first time Olympians who will fly the flag for Ireland in Rio this summer; boxer David Oliver Joyce, golfer Leona Maguire, show jumper Greg Broderick and Dr. Sara Tracey, steeplechase.

Finally, Irish country music star Mike Denver will perform a very special version of 'Black Betty'.

So yeah, grand lineup all in all. You may not like it, but your ma will LOVE it.

Catch Saturday Night with Miriam RTÉ One at 9.45pm.