Question: Who was a member of the group Celtic Thunder and who plays Rory Flanagan on "Glee"?

Context paragraphs:
Celtic Thunder: Storm: Celtic Thunder: Storm is the title of both a CD album and DVD that was released on 20 September 2011 by the musical group Celtic Thunder.  This article relates mostly to the DVD, which is worthy of mention because unlike Celtic Thunder's other DVDs, which are filmed versions of their touring concerts, "Storm" is a full theatrical production.

Damian McGinty: Damian Joseph McGinty Jr. (born 9 September 1992) is an actor and singer from Derry, Northern Ireland.  McGinty has been performing for over a decade, and was a member of the group Celtic Thunder for four years starting when he was fourteen.  On 21 August 2011, McGinty won the Oxygen reality show "The Glee Project", earning him a seven-episode guest-starring role on the hit Fox television show "Glee" which was later extended to 18 episodes.

Daniel Furlong: Daniel Furlong is an Irish singer.  He is most notable for winning the third series of "The All Ireland Talent Show".  He was also the first wildcard to win the show and the first to win for The East.  He has been a member of the Irish band Celtic Thunder.

Bernie Plays Rory: Bernie Plays Rory is an album by former Whitesnake guitar player Bernie Marsden, released in 2009.

Rory Flanagan: Rory Flanagan is a recurring fictional character from the Fox musical comedy-drama series "Glee".  The character is portrayed by actor Damian McGinty, and appeared in "Glee" starting with its third season episode "Pot o' Gold", first broadcast on November 1, 2011.  Rory is an exchange student from Ireland who arrives as a sophomore, and is living at the home of Brittany Pierce (Heather Morris) while studying at McKinley High.  He joins the McKinley glee club, New Directions, in his first episode.

Colm Keegan: Colm Keegan (born 2 August 1989) is a singer, songwriter and teacher from Dublin, Ireland.  He is currently a principal singer with Irish music group, Celtic Thunder, and has previously performed with the likes of Celtic Woman, The Priests, and Irish tenor Peter Corry.  He released his first solo album "I'll Never Be Alone" in the fall of 2016.

Celtic Thunder: Celtic Thunder is an Irish singing group and stage show known for its eclectic, theatrical style show.  The group is backed by the Celtic Thunder Band on their concert tours, and their live shows are known for the use of dramatic set pieces (often invoking symbols of ancient Celtic mythology), visual effects, and highly choreographed staging.

Deirdre Shannon: Deirdre Gilsenan is an Irish singer who has toured with a variety of Celtic music groups, such as Anúna, Celtic Thunder and Celtic Woman.  She is better known by the stage name Deirdre Shannon.

Pot o' Gold (Glee): "Pot o' Gold" is the fourth episode of the third season of the American musical television series "Glee", and the forty-eighth overall.  It was written by Ali Adler, directed by Adam Shankman, and was first broadcast on Fox in the United States on November 1, 2011.  The episode featured the arrival of Irish foreign exchange student Rory Flanagan ("Glee Project" prizewinner Damian McGinty) at McKinley High, a new challenger to Sue Sylvester (Jane Lynch) in her congressional race, and the ongoing fragmentation of the show's central glee club, New Directions.

Celtic Thunder (United States): Celtic Thunder is a traditional Irish music group founded in the United States in 1977.

Supporting paragraphs: Rory Flanagan Damian McGinty
Answer: Damian McGinty