Question: What is the occupation of both Cassadee Pope and Park So-yeon?

Documents:
source: Park So-yeon (singer)
text: Park So-yeon (singer) Park So-yeon (born October 5, 1987), better known mononymously as Soyeon, is a South Korean singer and actress. She is best known as the former main vocalist and member of South Korean girl group T-ara.

source: Cassadee Pope
text: Cassadee Pope Cassadee Blake Pope ; born August 28, 1989) is an American singer, songwriter and musician. Pope was the lead vocalist of the rock band Hey Monday (on hiatus as of December 2011), with whom she released one studio album and three EPs. Pope embarked on a solo career in early 2012, and released "Cassadee Pope EP" in May 2012. She took part in the third season of "The Voice" and became the first female winner on December 18, 2012. Her debut solo country album, "Frame by Frame", was released on October 8, 2013 to a top 10 "Billboard" 200 charting. It debuted at No. 1 on Top Country Albums, with 43,000 copies sold in its first week.

source: Summer (Cassadee Pope song)
text: Summer (Cassadee Pope song) "Summer" is a song by American singer-songwriter Cassadee Pope from her second extended play, also titled "Summer" (2016). Pope wrote the song with Kelly Archer and Emily Shackelton. Production was handled by Corey Crowder, who also produced Pope's chart-topping collaboration with Chris Young that year, "Think of You". It serves as the EP's lead single.

source: I Am Invincible
text: I Am Invincible "I Am Invincible" is a song written by Brett Boyett and Nash Overstreet, and recorded by the American singer-songwriter Cassadee Pope for her forthcoming second studio album. It was released to digital retailers through Republic Nashville on July 24, 2015 as the album's lead single and will impact American country radio on September 8, 2015. Pope debuted the empowerment anthem at the opening ceremonies of the 2015 Special Olympics World Summer Games on July 25, 2015.

source: Southern Air (album)
text: Southern Air (album) Southern Air is the eighth studio album by American rock band Yellowcard. It was released on August 14, 2012 through Hopeless Records. The songs "Always Summer" and "Here I Am Alive" were released as singles, the latter featuring Taylor Jardine of We Are the In Crowd. The album also features guest appearances by Alex Gaskarth of All Time Low and American recording artist Cassadee Pope. It debuted at 10 on the US Billboard top 200, making this their second album to debut in the top 10 (the other being their 2006 LP Lights and Sounds). It is the last to feature founding drummer Longineu W. Parsons III.

source: Wasting All These Tears
text: Wasting All These Tears "Wasting All These Tears" is a song by American singer-songwriter Cassadee Pope, written by Caitlyn Smith and Rollie Gaalswyk. It was released as Pope's debut solo single from her debut solo studio album "Frame by Frame" on May 31, 2013. It is the first song by Pope to reach Gold status, and has since been certified Platinum as of March 5, 2014.

source: Cassadee Pope (EP)
text: Cassadee Pope (EP) Cassadee Pope EP is the debut solo EP by American singer-songwriter Cassadee Pope, the vocalist of pop punk band Hey Monday and winner of season three of NBC's "The Voice". It was released digitally on Google Play on May 22, 2012 (before her participation on, and later winning of, "The Voice"), and was later released on iTunes Store with a digital booklet. Pope went solo after Hey Monday went on an indefinite hiatus in December 2011. Shortly after the hiatus was announced, she played an acoustic tour in the U.S. For the album, Rian Dawson (of All Time Low) played the drums, Keith Ruddell played the bass, Andrew Dixon and Jason Gavi handling the production duties of the EP.

source: I Wish I Could Break Your Heart
text: I Wish I Could Break Your Heart "I Wish I Could Break Your Heart" is a song by American singer-songwriter Cassadee Pope, written by Gordie Sampson, Ashley Monroe and Jon Green. It was released as the second single from Pope's debut solo studio album "Frame by Frame" on March 17, 2014.

source: Chris Hicky
text: Chris Hicky Chris Hicky is a Grammy-nominated music video director from Forrest City, Arkansas, United States, best known for directing many of Keith Urban's videos. Hicky has also directed videos for many other artists in the country music genre, including Dierks Bentley, Maddie & Tae, Kellie Pickler, Deana Carter, Thomas Rhett, Carrie Underwood, Hunter Hayes, Kelsea Ballerini, Lady Antebellum, Cassadee Pope, Faith Hill, and Danielle Bradbery, Florida Georgia Line, Miranda Lambert. He has won awards including 2010 ACM Video of the Year, 2010 CMT Female Video of the Year, and 2005 CMT Video of the Year. His Grammy nomination came in 2010 for Keith Urban's "Love, Pain, and the Whole Crazy World" live concert DVD.

source: 11 (song)
text: 11 (song) "11" is a song by American singer-songwriter Cassadee Pope from her debut solo album, "Frame by Frame" (2013). Pope co-wrote the song, which tells the story of her parents' divorce, with Nathan Chapman, while the production was handled by Dann Huff.

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Answer: singer