There are more than one artists with this name:

1). Noelle is the old name for the band Damone

2). Noelle is a female Japanese electro artist. Working with several producers, she has released two cover albums, comprised of popular Japanese songs done in an electro style.

Many of her songs are originally by pop artists with little electronic influence; however, she has also covered songs by electronic veterans such as Cornelius.
Her official website is http://www.noellemusic.jp/

3). Noelle is a female Croation singer Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.