Question: What is the profession of JC Chasez and Annie Lennox?

Context paragraphs:
A Night Out with Friends: A Night Out With Friends is a two disc live album by Richard Marx with the second disc being a DVD, the second of his career.  Accompanying the release of "A Night Out With Friends", the live performance video was broadcast on PBS', "Front Row Center" concert series, episode 109 began airing on May 31, 2012.  Richard Marx' friends, in order of appearance and song performed: Sara Niemietz ("Keep Coming Back"), Matt Scannell ("You're A God"), JC Chasez ("This I Promise You") and Hugh Jackman ("To Where You Are").

Blowin' Me Up (With Her Love): "Blowin' Me Up (With Her Love)" is the debut single by American recording artist JC Chasez.  The song was released as a single from the soundtrack to the 2002 film "Drumline" and was included on Chasez's debut studio album "Schizophrenic".  In the United Kingdom, the single was released as a double A-side with Chasez' following single, "Some Girls (Dance with Women)" in February 2004.

Pattern of My Life: "Pattern of My Life" is the second and last single released from Annie Lennox's first greatest hits album "The Annie Lennox Collection".  The song is a cover version of "Closer Now" by Keane which was a b-side to their debut single "Call Me What You Like".  Lennox retitled the song, referring to a lyric in the song.  This single was released on 24 May 2009 in the United Kingdom.

America's Best Dance Crew (season 3): The third season of "America's Best Dance Crew" premiered on January 15, 2009.  The season was once again hosted by Mario Lopez and featured Layla Kayleigh as the backstage correspondent.  Lil Mama, JC Chasez, and Shane Sparks returned as the judging panel.  This was the first season without a special casting episode.  In the live finale, which aired on March 5, 2009, Quest Crew was declared the winner.

Blow Up the Moon: Blow Up the Moon is the twelfth studio album by American rock band Blues Traveler, released on April 7, 2015.  Every track on the album was recorded as a collaboration; guests on the album include 3OH! 3, JC Chasez, The Dirty Heads, Rome Ramirez, Hanson, Plain White T's, Thompson Square, Secondhand Serenade, New Hollow, Jewel, Bowling for Soup, and Thomas Ian Nicholas.

America's Best Dance Crew (season 2): The second season of "America's Best Dance Crew" premiered on June 19, 2008.  The live auditions special took place on June 7, 2008.  The season was hosted by Mario Lopez, featured Layla Kayleigh as the backstage correspondent, and included Lil Mama, JC Chasez, and Shane Sparks as judges.  In the live finale, which aired on August 21, 2008, Super CR3W was declared the winner.

The Annie Lennox Collection: The Annie Lennox Collection is the first greatest hits album by the Scottish singer-songwriter Annie Lennox.  It was released on 9 March 2009 and contains two brand-new songs, "Shining Light", originally a song by Ash, and a cover version of Keane's B-side "Closer Now", retitled "Pattern of My Life".  The artwork was shot by the rock singer Bryan Adams.

Annie Lennox: Ann "Annie" Lennox, (born 25 December 1954) is a Scottish singer, songwriter, political activist and philanthropist.  After achieving moderate success in the late 1970s as part of the new wave band The Tourists, she and fellow musician David A. Stewart went on to achieve major international success in the 1980s as Eurythmics.  With a total of eight Brit Awards, including Best British Female Artist six times, Lennox has won more than any other female artist.  She has also been named the "Brits Champion of Champions".

Step by Step (Annie Lennox song): "Step by Step" is a song written and originally recorded by singer Annie Lennox, later a cross over pop hit by R&B/pop singer Whitney Houston.  The song served as the second single from Houston's 1996 soundtrack album, "The Preacher's Wife".  Lennox's recording originally appeared as the B-side to her 1992 single "Precious" Largely, Houston's version replaces Lennox's verses with new lyrics and omits portions from the bridge as well.  Annie Lennox also provides background vocals in Houston's rendition.

JC Chasez: Joshua Scott "JC" Chasez ( ; born August 8, 1976) is an American singer, songwriter, dancer, record producer, and occasional actor.  He started out his career as a cast member on "The Mickey Mouse Club" before rising to stardom with *NSYNC, and by writing and producing for music acts such as Girls Aloud, Basement Jaxx, David Archuleta, and Matthew Morrison.  He also served as a judge for "America's Best Dance Crew".

Supporting paragraphs: JC Chasez Annie Lennox
Answer: singer