Question: What do both Hyomin and Jaren Johnston do?

Context paragraphs:
Beachin': "Beachin'" is a song recorded by American country music artist Jake Owen.  It was released in February 2014 as the second single from his fourth studio album "Days of Gold".  The song was written by Jaren Johnston, Jon Nite and Jimmy Robbins.  It garnered positive reviews from critics praising the production and Owen's lyrical delivery.

Lifted (Dallas Smith song): "Lifted" is a song recorded by Canadian country music artist Dallas Smith for his second studio album of the same name (2014).  The ballad about young love was written by Jeremy Stover, Jaren Johnston, and Zac Maloy, and is Smith's favourite song on the record.  It was released to Canadian country radio on February 17, 2015 as the second single off the album, or fifth including the singles from "Tippin' Point" (2014).

Jaren Johnston: Jaren Johnston (born October 4, 1980) is an American country music and rock singer and songwriter.  He is a member of the group The Cadillac Three.

You Gonna Fly: "You Gonna Fly" is a song written by Preston Brust, Chris Lucas, and Jaren Johnston, and recorded by Australian country music artist Keith Urban.  It was released in October 2011 as fourth single from his 2010 album "Get Closer".  The song hit number 1 on the "Billboard" Hot Country Songs chart in February 2012.

Raise 'Em Up: "Raise 'Em Up" is a song written by Tom Douglas, Jaren Johnston and Jeffrey Steele and recorded by New Zealand-born Australian country music singer Keith Urban as a duet with American country music singer Eric Church.  It was released in January 2015 as the fifth international single, sixth overall and final single from Urban's 2013 album "Fuse".

Southern Girl: "Southern Girl" is a song written by Jaren Johnston, Rodney Clawson, and Lee Thomas Miller, and performed by American country music artist Tim McGraw.  It was released in July 2013 as the fourth single from the album "Two Lanes of Freedom".

Don't It: "Don't It" is a song recorded by American country music artist Billy Currington.  It was released in October 2014 as the first single from his sixth studio album "Summer Forever" (2015).  The song was written by Ross Copperman, Ashley Gorley, and Jaren Johnston and produced by Dann Huff.

Hyomin: Park Sun-young (born May 30, 1989), better known by her stage name Hyomin, is a South Korean singer, songwriter and actress.  She is a member of South Korean girl group T-ara.

Meanwhile Back at Mama's: "Meanwhile Back at Mama's" is a song recorded by American country music artist Tim McGraw and his wife Faith Hill.  It was released in April 2014 as the second single from his second studio album for Big Machine Records, "Sundown Heaven Town".  The song was written by Jeffrey Steele, Jaren Johnston and Tom Douglas.

Young in America: "Young in America" is a song recorded by American country music artist Danielle Bradbery and written by Whitney Duncan, Jaren Johnston, and Kylie Sackley.  It was released as the second single from her self-titled debut album on April 21, 2014.

Supporting paragraphs: Hyomin Jaren Johnston
Answer: singer, songwriter