Susan Boyle | I Dreamed a Dream

Scottish singer Susan Boyle rose to fame as a contestant on the third season of the reality singing competition Britain’s Got Talent singing “I Dreamed a Dream” from the blockbuster musical Les Miserables. Her debut album of the same name, released in 2009, quickly became the UK’s best-selling album of all time, and with over 10 million copies sold is now one of the best-selling records of the 21st century. Boyle has gone on to release seven additional albums.

The tune begins in Eb and dramatically modulates up a whole step to F at 1:44.

Dream Street | I Say Yeah

“I Say Yeah” is featured on the eponymous 2000 debut album by the American boyband Dream Street. The group, which originally formed in 1999 and broke up in 2002, reunited last year and released a single this past June. It is unclear if or when they will release another full album.

This track begins in D and modulates up to E at 2:14.

Shug Avery Comin’ To Town (from “The Color Purple”)

This song is from Act 1 of the 2005 Broadway musical The Color Purple, announcing the arrival of Shug Avery, a jazz singer to the rural Georgia community where the show is based. The Tony-nominated score by Brenda Russell, Allee Willis and Stephen Bray synthesizes blues, gospel and musical theater influences. A revival was mounted in 2015, and a movie adaptation of the musical was released last month on Christmas.

The song begins in Bb, shifts to G at 0:34, and finally modulates to C at 2:00.

Brian McKnight (feat. Take 6) | Bless This House

“Bless This House,” originally published in 1927 and written by Helen Taylor and May Brahe, is the final track on American singer Brian McKnight’s 2008 album I’ll Be Home For Christmas, his second holiday record. The track also features the a cappella group Take 6, known for their synthesis of jazz and spiritual themes.

The tune begins in Bb and shifts up to B at 1:48. A subtle transition to C major occurs around 3:29.

Faith Hill | Where Are You Christmas?

Written for the end credits/soundtrack of the 2000 film How The Grinch Stole Christmas, “Where Are You Christmas” is a pop adaptation of the song “Christmas, Why Can’t I Find You” that is featured in the movie.

Mariah Carey, who wrote both songs, originally recorded the former, but due to a legal dispute with her husband it could not be released, leading to Faith Hill recording it instead.

The power ballad starts in Bb, modulates briefly to C at 2:59, and ultimately lands in D at 3:16.

Backstreet Boys | Never Gone

“Never Gone” is the final track on the Backstreet Boys’ eponymous 2005 album. The record marked a transition for the group from a teen pop style into a more pop/rock, contemporary sound, and is the first album of theirs to exclusively use live instruments. It debuted at #3 on the Billboard 200 chart, and has sold over 3 million copies worldwide.

The intro of the track is in D minor but quickly transitions to F, the relative major, when the vocals enter. There is a modulation up a whole step to G following the brief bridge at 2:43.

Michael Buble | Orange Colored Sky

Written by Milton Delugg and Willie Stein in 1950, “Orange Colored Sky” has been covered by Nat King Cole, Natalie Cole, Lady Gaga, Doris Day and others. Michael Bible included the song as a bonus track on his 2007 album Call Me Irresponsible.

The track begins in Bb with a slow intro before moving into double time. There is a subtle key change up to C at 2:42.

Celine Dion | I Surrender

“I Surrender,” written by Louis Biancaniello and Sam Watters, is included on Canadian singer Celine Dion’s 2002 album A New Day Has Come. The album has sold over 12 million copies worldwide and debuted at #1 in 13 countries. The track begins in G minor and dramatically modulates up a half step to G# minor at 3:21.

Anastacia | Paid My Dues

“Paid My Dues” is featured on American singer Anastacia’s 2001 album Freak of Nature. Reviewing the album for Slant magazine, critic Sal Cinquemani wrote “her tenacious attitude on songs like “Paid My Dues” and the funky title track carve a unique niche for the singer.”

The track reached the #1 spot on the charts in Denmark, Hungary, Italy, Norway, and Switzerland. It begins in C# minor and modulates up to D minor for the last two times through the chorus at 2:38.