1997-2000: Band years
In 1997, Plumb released her self-titled debut album Plumb. In 1999, she released her second studio album candycoatedwaterdrops, which won the 2000 Gospel Music Association Dove Award for "Modern Rock Album of the Year". Two tracks from it were later covered by other artists; "Stranded" by Jennifer Paige and, in 2003, "Damaged" by Plummet.
Plumb was marketed as a band during the first three album releases on Essential Records. The band was named after the Suzanne Vega song "My Favorite Plum".
2000-present: Solo career
Plumb wanted to leave the music industry after the 2000 album. Lee received a note from a girl a few hours before what she thought to be her final concert. The letter was about the Plumb song "Damaged" that Arbuckle Lee had written and recorded about a girl coping with being molested as a child. The note said "Whatever you do, I just want you to never forget that you have changed someone's life." The note inspired Arbuckle Lee to remain in the music industry.
In order to leave Essential Records, Plumb had to fulfill her contract obligations, and this led to The Best of Plumb record in 2000. She signed to Curb Records as a solo artist in 2003, releasing the album Beautiful Lumps of Coal. The lead single, called "Real", peaked at No. 41 in the UK Singles Chart.
Her album Chaotic Resolve entered the Billboard Top 200 album chart at No. 177 on March 9, 2006. "Better" reached No. 1 on the U.S. Christian airplay chart. The Bronleewe & Bose remix of her follow-up, "Cut", hit No. 1 on XM's dance hits channel BPM, and No. 5 on Billboard's Dance Charts Hot Dance Airplay.
Her third solo album, Blink, was released on October 9, 2007. "In My Arms", the first single from the album, was remixed by Kaskade, Scotty K, Bronleewe & Bose, Gomi, and Bimbo Jones and reached the No. 1 spot on the Billboard Dance Charts.
On May 19, 2009, she announced that she was recording a new album titled Beautiful History due out later in the year. The first single from Beautiful History, "Hang On", reached number one on US Billboard Hot Dance Club Play in 2009 and reached the top spot in Billboard's Hot Dance Airplay chart in 2010.
On December 20, 2012, she expressed a desire to rename her upcoming album from Faster Than a Bullet to Need You Now in honor of the victims and families of the Sandy Hook Elementary School shooting.