There are multiple artists named Helena.
1) Helena (Helena Noguerra) is a Belgian-born successful actress, model and singer-songwriter. She sings and writes her own lyrics in French, English and Portuguese.
She has worked as a radio DJ, covered Kylie Minogue's "I just can’t get you out of my head" in a very sensual version and published two novels. While still modelling, she met up with musicians, did some collaborations and also met Philippe Katerine who did most of the composing and producing of their two rather different projects.
Azul (2003) is mostly bossa nova influenced with subtle electronic touches while Née dans la nature (2004) follows French chanteuse tradition.
In 2006, she and Frederico Pellegrini (of The Little Rabbits), going under the name Dillinger Girl and "Baby Face" Nelson, released a concept album, Bang!.
2) Helena is a eurobeat vocalist, and her real name is Elena Ferretti. Ferretti has done most of her vocals for Time Records. Other aliases of Ferretti include Sophie, Victoria, Erika, and Linda.
3) Helena is an Indian-born LA-based singer-songwriter signed to Warner Bros. Records. "Sunlight" is the lead single off her debut album due in 2012.
4) Helena is a DJ turned producer from Australia who released her first single, "Girl from Outta Space", in 2012.
5) Helena Paparizou, born 31 January 1982 in Borås, Västergötland, Sweden, is a popular Greek singer, best known in Europe for winning the Eurovision Song Contest 2005 for Greece with the song “My Number One”.