Two door cinema club :d
It depends what you like. If you like rap then Eminem( I think edited version is better).
Indie is always confused for a specific style of music that some indie bands play. (if you ever heard the Juno soundtrack... that is what people think indie music is) But indie refers to bands or artists that are not signed with a major recording company. some examples of indie bands are push play lights resolve and some underground bands.
Some popular artists or bands that specialize in creating soft electronic music include Tycho, Bonobo, and Odesza.
Some popular bands or artists known for exceptional trio performances in the music industry include Nirvana, The Police, and Cream.
There are very many bands that perform alternative rock songs. Some well known bands are Reliant K, Box Car Racer, Paramore, Flyleaf, Taking Back Sunday and Nirvana.
Some popular artists or bands that specialize in playing Celtic guitar music include Tony McManus, Al Petteway, and Pierre Bensusan.
Some good drum bands are the Police and the Gorillaz
Thin Lizzy , U2, The Pogues, & The Cranberries.
The names of some good bands or artists for you are:Linkin ParkColdplayParamoreEvanescencePoets of the FallVersa EmergeAdam LambertJason MrazPlacebo
Some well known alternative music artists are Architecture in Helsinki, Asian Kung-Fu Generation, The Asteroids Galaxy Tour, Big Audio Dynamite, Brian Jonestown Massacre.
Indie bands: the xx, electric guest, the neighborhood, the kooks, bon iver, lana del ray, bag raiders, two door cinema club, and beck
The movement, bob Marley, sublime, rebalution those are some great reggae artist :)