Question: Which member of Celtic Woman appeared in stage productions of Grease and Legally Blonde the Musical?

Context paragraphs:
Celtic Woman: A New Journey: Celtic Woman: A New Journey is the second on-stage production by the group Celtic Woman.  The show was filmed at Slane Castle in County Meath, Ireland and featured Hayley Westenra as a new addition to the group.  The album was released on 30 January 2007.  This album broke a long-standing record when it surpassed the 81-week run of the original "Celtic Woman" album.  The Celtic Woman performers change their outfits at least three times.

Tanya Chisholm: Tanya Chisholm (born July 1, 1983) is an American actress and dancer.  She is mostly known for her role as Kelly Wainwright on the Nickelodeon sitcom, "Big Time Rush".  She is also known for her role as Marcie on the "Legally Blonde" spin off, "Legally Blondes", (otherwise known as "Legally Blonde 3"), acting alongside Camilla Rosso and Rebecca Rosso.  She has guest-starred shows such as, "Cory in the House", "Ghost Whisperer", and "Cold Case".  She also had a recurring role on "Veronica Mars".  Tanya Chisholm has also appeared in YouTube group, WongFuProduction's, videos such as Linappropriate, Chester See's sketch production entitled "I Glove You," and David Choi's music video for Won't Even Start as an extra.

Iwan Lewis: Iwan Lewis (born 28 December 1988) is a Welsh theatre and film actor.  He is known for the roles of Emmett in the UK tour of the stage version of "Legally Blonde" and Bahorel in the film version of "Les Miserables".  Lewis graduated from the Guildford School of Acting in 2010.  In 2007, during his time at the GSA, he was a recipient of an award from the Elizabeth Evans Trust.  In addition to his roles in "Les Misérables" and "Legally Blonde", Lewis also appeared in the 2010 London Revival of Stephen Sondheim's "Passion".

Susan McFadden: Susan McFadden (born 8 February 1983) is an actress and singer born in Dublin, Ireland.  She is best known for playing the roles of Sandy in "Grease" at the Piccadilly Theatre and Elle Woods in "Legally Blonde the Musical" at the Savoy theatre in London's West End.  She has also been a member of the all female Celtic music group, Celtic Woman, since 2012.

Legally Blonde (musical): Legally Blonde is a musical with music and lyrics by Laurence O'Keefe and Nell Benjamin and book by Heather Hach.  The story is based on the novel "Legally Blonde" by Amanda Brown and the 2001 film of the same name.  It tells the story of Elle Woods, a sorority girl who enrolls at Harvard Law School to win back her ex-boyfriend Warner.  She discovers how her knowledge of the law can help others, and successfully defends exercise queen Brooke Wyndham in a murder trial.  Throughout the show, no one has faith in Elle Woods, but she manages to surprise them when she defies expectations while staying true to herself.

Legally Blondes: Legally Blondes (also known as Legally Blonde 3) is a 2009 film of the "Legally Blonde" series from MGM.  The character Elle Woods, previously played by Reese Witherspoon, does not appear in the film, but is mentioned several times.  Witherspoon produced the film.  The film aired on ABC Family and Disney Channel, and is directed towards a younger audience than the first two films.  The film stars Camilla and Rebecca Rosso as Elle Woods' British twin cousins.  The film was universally panned by film critics, mostly for the film's little to no connection with the first two films, and is considered to be one of the worst direct-to-DVD sequels of all time.

Celtic Woman: Voices of Angels: Celtic Woman: Voices of Angels is the eleventh studio album by the group Celtic Woman.  "Voices of Angels" features vocalists Susan McFadden, Mairead Carlin, Éabha McMahon, and fiddler Tara McNeill, with former member Méav Ní Mhaolchatha as a guest.  This was Celtic Woman's first album to feature their newest member Tara McNeill.

Celtic Woman (album): Celtic Woman is the eponymous debut album of Irish singing group Celtic Woman.  The members of the group were first featured on a PBS musical special of the same name.  With the help of the said special, Celtic Woman reached #1 on the World Music charts within weeks and remained there for a record 81 weeks.

Isabeau Méndez: Isabeau Mendez (born March 31, 1990) is a musical theater actress, television hostess, singer and model.  Born in Miami Beach, Florida, and raised in Panama, she has performed acting roles in stage productions such as Cosette in Les Miserables Panama, Tinkerbell in Peter Pan, Elle Woods in Legally Blonde, among other roles in the musicals Aladdin, Victor/Victoria, Beauty and the Beast and Fiddler On The Roof.  On television, Isabeau has appeared on several reality shows and soap operas such as Los Brownies, Sueños de Verano, Cantando por un Sueño, La Ultima Hora, Lobby T.V. and ¿Quien T.V.?  since 2008.

Legally Blonde 2: Red, White &amp; Blonde: Legally Blonde 2: Red, White & Blonde (also referred to as just Legally Blonde 2) is a 2003 American comedy film directed by Charles Herman-Wurmfeld and written by Kate Kondell.  The sequel to the 2001 film "Legally Blonde", the film stars Reese Witherspoon alongside an ensemble cast featuring Sally Field, Regina King, Jennifer Coolidge, Bruce McGill, Dana Ivey, Mary Lynn Rajskub, Bob Newhart, and Luke Wilson, with Coolidge and Wilson reprising their roles from the first film.

Supporting paragraphs: Celtic Woman: Voices of Angels Susan McFadden
Answer: Susan McFadden