The gauntlet has been thrown. The challenge? To learn Welsh in a week whilst being followed each step of the way by the S4C cameras. Now, the Channel has announced the names of the eight celebrities brave enough to take part.

The celebrities appearing on Cariad@Iaith:Love4Language 2014 (from 14 June on S4C) are:

Behnaz Akghar
Behnaz Akghar was born in Shiraz, Iran in 1980 and her first language is Persian. Behnaz is a weather presenter on the BBC Wales services.

Jenna Jonathan
Jenna Jonathan is 21 years old and comes from a village called Tonyrefail in Rhondda Cynon Taf. She graduated with a degree in law before joining the cast of The Valleys, a reality TV series set in Cardiff.

John Owen Jones
John Owen Jones is an actor and singer from Bury Port in Carmarthenshire. He’s most famous for playing Jean Valjean in the musical Les Misérables, and as The Phantom in The Phantom of The Opera.

Neville Southall
Neville Southall is a former international football player from Llandudno. He played in goal for Everton for 17 years and played for Wales 92 times.

Sam Evans
In 2013 Sam Evans from Llanelli became the first ever Welsh winner of the reality TV series Big Brother. Sam was born 70%-80% deaf and has spent his life learning how to lip read.

Siân Reeves
Siân Reeves is an actress from Llanelli who now lives in London. She was part of the original cast of Les Misérables in 1985 and has appeared on Cutting It, Emmerdale and Eastenders. She is now part of the cast of Sky 1′s comedy series, Mount Pleasant.

Suzanne Packer
Suzanne Packer is an actress from Cardiff and is best known as Tess Bateman in BBC One’s medical drama series, Casualty. Suzanne is the older sister of athlete and commentator Colin Jackson, and she has a son called Paris.

Ian ‘H’ Watkins   
Born and raised in the Rhondda Valley, Ian’s big break came when he answered an ad to form a new pop band, STEPS, which would go on to become one of the biggest selling acts of the nineties.

For more information about the eight visit s4c.co.uk/s4cariad

The eight celebrities will be staying at Nant Gwrtheyrn, a Residential Welsh Language Course Centre in Llithfaen near Pwllheli for a week where they’ll attend an intense Welsh lesson every day with Nia Parry and fellow tutor Ioan Talfryn, before taking part in all sorts of activities through the medium of Welsh.

A special programme introducing the celebrities will be broadcast on S4C on Saturday 14 June at 8.00, and then Nia Parry and Matt Johnson will be bringing us the latest gossip from the Nant on  Cariad@Iaith:Love4Language every night between Monday 16 June and Friday 20 June at 8.30 and 9.25. The final will take place on Saturday 21 June at 8.00 when one of the celebrities will be crowned the series winner. The series is produced by Fflic, who are part of Boom Pictures Cymru.

For the latest information about the series follow @s4cariad on Twitter and like Cariad@Iaith:Love4Language on Facebook.