Who’s on The One Show tonight and where is Carrickfergus Castle? Martine McCutcheon appears on Northern Ireland special

THE One Show is back on the box tonight, and it's coming from a very different location than usual.
Not only that but a familiar face from the land of soap is heading for the sofa to talk about her new music. Here's the low-down on tonight's show...
Who's on The One Show tonight?
Martine McCutcheon will be joining the hosts tonight.
The former EastEnders actress and Love Actually star, 41, is currently reviving her pop career.
Her first album since 2002 is coming out this month and it's called Lost And Found.
Martine's said of the comeback: "It was a massive comfort to me - when you hit rock bottom and there's nowhere to go but up, it just feels natural you should let it out and write music and lyrics.
"At the time I didn't know if I'd be able to walk from one end of the room to another, never mind do an album.
"It's cliche but true but out of the bad times can come the best art."
Martine has also been linked to the new series of Strictly and recently hit the headlines when discussing online body-shaming and her battle with Lyme disease.
You can watch the video for the first single from her new album, called Say I'm Not Alone, here.
Who is presenting The One Show tonight and where is it being filmed?
Show regulars Matt Baker and Alex Jones will front tonight's episode of The One Show following its break.
The show is coming from Northern Ireland's Carrickfergus Castle tonight, the first episode in their Big Causeway Crawl which will see them end up at The Giant's Causeway on Friday.
Carrickfergus Castle is located in Carrickfergus, County Antrim, on the northern shore of the Belfast Lough.
Matt Baker made his name on Blue Peter before fronting Countryfile and The One Show, while Alex Jones started out as a TV researcher before bagging the prestigious BBC gig.
What time is The One Show on?
You can tune in to BBC One at 7pm on weeknights to watch the show.
Today’s episode will last 30 minutes, and will be followed by The Bug Grub Couple, before EastEnders kicks off at 8pm.
Each night the One Show presenters mix interviews with an array of celebrity guests with an eclectic mix of topics ranging from current affairs to pop culture.
It is then available on demand on the BBC iPlayer.