There are several artists/bands called Alexa.

1) Alexa aka Olga Fesenco (born January 3, 1988) is a Moldovan pop artist that has taken several times part in the Moldovan national final of the Eurovision Song Contest. In 2008 her song was «We Are One» and in 2009 «(A Flight) to the Light».

2) Alexa is a band from Indonesia.