Question: "Snapback" is a song by American country music group Old Dominion, Old Dominion is an American, with how many members, country music band formed in Nashville, Tennessee?

Context paragraphs:
Meat and Candy: Meat and Candy is the debut studio album by American country music group Old Dominion.  It was released on November 6, 2015 via RCA Records Nashville.  The album includes the single "Break Up with Him", which has charted No. 1 on Country Airplay.  The album's second single, "Snapback" released to country radio on January 11, 2016.  The album's third single, "Song for Another Time" released to country radio on June 20, 2016.

Shane McAnally: Shane McAnally (born October 12, 1974) is an American singer, songwriter and record producer.  Originally a solo artist for Curb Records in 1999, McAnally charted three singles on Hot Country Songs, including the No. 31 "Are Your Eyes Still Blue", before becoming a songwriter and record producer.  He has written and produced songs for Walker Hayes, Kacey Musgraves, Kelly Clarkson, Sam Hunt, Kenny Chesney, Reba McEntire, Jake Owen, Luke Bryan, The Band Perry, Lady Antebellum, Keith Urban, Thomas Rhett, Brothers Osborne, Old Dominion, Dierks Bentley, Miranda Lambert, and more.  The Academy of Country Music named him Songwriter of the Year in 2014.  He also won "Best Country Album" and "Best Country Song" at the 2014 Grammy Awards for his work on Kacey Musgraves's "Same Trailer Different Park".  In 2015, "Billboard" named him the Hot Country Songwriter of the Year as well as a "Billboard" Power Player.  McAnally joined industry veteran Jason Owen in early 2017 to relaunch Monument Records as co-presidents.

No Such Thing as a Broken Heart: "No Such Thing as a Broken Heart" is a song by American country music group Old Dominion.  It was released to for sale on March 10, 2017, and to radio on March 20, 2017 as the first single from their upcoming second studio album "Happy Endings".

Shut Me Up (Old Dominion song): "Shut Me Up" is a song by American country music group Old Dominion.  It was released in November 2014 as the first single from their self-titled EP.  Band members Matthew Ramsey and Brad Tursi wrote the song with Andrew Dorff.

Song for Another Time: "Song for Another Time" is a song by American country music group Old Dominion.  It was released to radio on June 20, 2016 as the third single from their debut studio album, "Meat and Candy".

Break Up with Him: "Break Up with Him" is a song by American country music group Old Dominion.  Originally released as the second single off their self-titled EP on ReeSmack in January 2015, the band later signed with RCA Nashville on February 2015 and re-released the song on May 11 as the lead single from their debut album "Meat and Candy".  The song garnered positive reviews from critics praising the production and lyrical content.

Old Dominion (band): Old Dominion is an American five-member country music band formed in Nashville, Tennessee.  The band consists of Matthew Ramsey (lead vocals), Trevor Rosen (guitar, keyboards), Whit Sellers (drums), Geoff Sprung (bass guitar), and Brad Tursi (guitar).  Their music is contemporary country with rock instrumentation, and has pop and hip hop overtones.  They released their first self-titled EP in 2014, followed by their debut studio album, "Meat and Candy" on RCA Records Nashville, which includes the singles "Break Up with Him", "Snapback", and "Song for Another Time".

Matthew Ramsey (songwriter): Matthew Ramsey (born October 21, 1977) is an American country music songwriter and the lead vocalist of the American country music band Old Dominion with several hit songs on country radio to his credit.

Snapback (song): "Snapback" is a song by American country music group Old Dominion.  It was released on January 11, 2016 as the second single from their debut studio album, "Meat and Candy" (2015).  "Snapback" peaked at #2 and #4 on the "Billboard" Country Airplay and Hot Country Songs charts, and was the #2 Country Airplay record of 2016.  It also reached the top 50 on the Hot 100.  The song was certified Gold by the Recording Industry Association of America (RIAA), and has sold 413,570 copies in the United States as of July 2016.  It received similar chart success in Canada, giving the band their second #1 hit on the Canada Country chart and reaching #68 on the Canadian Hot 100.  It also garnered a Platinum certification from Music Canada, denoting sales of 80,000 units in that country.  The accompanying music video for the song was directed by Steve Condon and features the band in Los Angeles performing at a skate park and a house party.

Trevor Rosen: Trevor Rosen is an American country music songwriter.  He is also a member of the American country music band Old Dominion, in which he plays guitar and keyboards.

Supporting paragraphs: Snapback (song) Old Dominion (band)
Answer: five-member