Question: What profession does Every Day's Like Christmas and Chris Martin have in common?

Context articles: Every Day Is a Holiday
If Every Day Was Like Christmas
It's Beginning to Look a Lot Like Christmas
Every Day's Like Christmas
Elmo Saves Christmas
The Classic Christmas Album (Johnny Mathis album)
Every Day I Have the Blues
Everyday Is Christmas
Christmas Peace
Chris Martin

"Every Day Is a Holiday" is a song written and recorded by American singer Katy Perry.
 Produced by Duke Dumont, the song was released on November 23, 2015 as part of H&M's holiday campaign.
 It is a gospel-inspired Christmas dance track talking about love being the best Christmas gift.
 "Every Day Is a Holiday" was accompanied by a promotional commercial directed by Jonas Åkerlund the same day as its release.
"If Every Day Was Like Christmas" is a song by Elvis Presley which was released in 1966 as an RCA Victor 45 single, 47-8950, backed with "How Would You Like To Be" from the movie "It Happened at the World's Fair".
 The song was recorded on June 10, 1966 at RCA Studio B in Nashville and featured The Jordanaires and The Imperials Quartet on backing vocals.
 The song was written by Red West.
 The single reached No. 2 on Billboard's "Best Bets For Christmas" survey in 1966, and returned to the chart in 1967, spending a total of eight weeks in the chart.
 In the United Kingdom, the song reached Number 9 in the UK Singles Chart in December 1966.
"It's Beginning to Look a Lot Like Christmas" is a Christmas song written in 1951 by Meredith Willson.
 The song was originally titled "It's Beginning to Look Like Christmas".
 The song has been recorded by many artists, but was a hit for Perry Como and The Fontane Sisters with Mitchell Ayres & His Orchestra on September 10, 1951, and released on RCA Victor as 47-4314 (45 rpm) and 20-4314 (78 rpm).
 Bing Crosby recorded a version on October 1, 1951, which was also widely played.
"Every Day's Like Christmas" is a song by Australian recording artist Kylie Minogue, taken from her thirteenth studio album and first Holiday album, "Kylie Christmas" (2015).
 It was written by Chris Martin, the frontman of the British alternative rock band, Coldplay and Stargate, who also produced.
 Martin also sings the backing vocals of the song.
 The song is an electronic pop ballad where Minogue describes her compassion towards her partner on Christmas Day.
 It contains elements of modern electronic music and Christmas music.
 A remix version by Stock Aitken Waterman was released as the third single from the album on 2 December 2015.
Elmo Saves Christmas is a 60-minute television special and home video that was released and aired on PBS on December 2, 1996.
 In the story, Elmo learns that Christmas can't occur every day.
 It was shot at "Sesame Street"'s usual home: the Kaufman Astoria Studios in New York City.
 It was based on a short story, "Christmas Every Day" by William Dean Howells.
The Classic Christmas Album is a Christmas compilation album by American pop singer Johnny Mathis that was released on October 7, 2014, by Columbia Records and includes two 1961 recordings that were previously unavailable: "Ol' Kris Kringle" and the original version of the title track from his 1969 Christmas album "Give Me Your Love for Christmas".
 Three other songs ("Christmas in the City of the Angels", "Sign of the Dove" and "The Very First Christmas Day") make their debut on compact disc as of this release, and two other non-album singles ("Christmas Is..." and "My Kind of Christmas") can be counted among the rarities here.
 The collection also includes a selection or two from several of Mathis's Christmas studio albums—"Sleigh Ride" from "Merry Christmas", "Have Yourself a Merry Little Christmas" from "Sounds of Christmas", "Calypso Noel" from "Give Me Your Love for Christmas", "The Christmas Waltz" and "It's Beginning to Look a Lot Like Christmas" from "Christmas Eve with Johnny Mathis", and "Home for the Holidays" from "Sending You a Little Christmas"—as well as his duet with Bette Midler from her 2006 holiday album "Cool Yule", which was a medley of "Winter Wonderland" and "Let It Snow!
 Let It Snow!
 Let It Snow!
".
"Every Day I Have the Blues" is a blues song that has been performed in a variety of styles.
 An early version of the song is attributed to Pinetop Sparks and his brother Milton or Marion.
 It was first performed in the taverns of St. Louis by the Sparks brothers and was recorded July 28, 1935 by Pinetop with Henry Townsend on guitar.
 The song is a twelve-bar blues that features Pinetop's piano and falsetto vocal.
 The opening verse includes the line "Every day, every day I have the blues."
"Everyday Is Christmas" is a song written by Roxanne Seeman and Philipp Steinke.
 It was recorded by Jacky Cheung on his "Private Corner" album, released on January 29, 2010, by Universal Music.
 "Everyday Is Christmas" was recorded again by Earth, Wind & Fire on their "Holiday" album (as "Every Day Is Like Christmas"), released October 21, 2014 by Legacy Recordings, Sony Music.
Christmas Peace (Finnish: "joulurauha" , Swedish: "julfrid" ) is a tradition based on old Scandinavian legislation created by Birger Jarl in the 13th century, extending the tradition of the Truce of God.
 Offenders who committed crimes on religious holidays like Christmas were given harsher punishments.
 Today it is a tradition to recommend that people behave in a respectful and peaceful manner at Christmas.
 The Declaration of Christmas Peace has remained in Finland where it is an essential part of the Christmas tradition.
Christopher Anthony John Martin (born 2 March 1977) is an English singer, songwriter, musician, record producer and philanthropist.
 He is best known as the lead singer and co-founder of the British rock band Coldplay.
 Born in Whitestone, near Exeter in Devon, Martin went to University College London where he formed a rock band with Jonny Buckland in 1996 called Pectoralz, which was eventually renamed Coldplay in 1998.