Pop or Dance, definitely. A little alternative, but not as much as pop and dance :)
Her music
catchy tunes . . .
Placebo is considered an alternative rockband.
Godsmack's music is considered hard rock. It tends to be played on stations that play heavy rock music, but also alternative music. The music could also be considered as post grunge.
"Maybe Tomorrow" is one of my favorite songs They play a mixture but most would fall under the category of pop.
Metro station's songs are considered to be in the alternative rock genre.
The type of music that Meiko plays is considered to be adult alternative. Other descriptions of the music of Meiko includes Indie pop and folk music.
Any other type of music.
osmosis
Retro Alternative Music was created in 2004.
On itunes most of their songs are under the Alternative genre. But its is kind of like a mesh of all genres put together.
I would say that Coldplay is a Softrock, Alternative band. That's at least what they say about themselves