Some easy songs for a beginner on electric guitar?

I have absolutely no idea how to play an electric or acoustic guitar. I don't even now the chords or strings, or notes, and I barely know how to read notes. I'm looking for very easy songs to play for someone who has never played before. If there is a website with videos on how to play electric guitar, that would be helpful, too. I really like Adele, Maroon 5, Florence + The Machine, Coldplay, Lily Allen, Scouting for Girls, John Mayer, and Jason Mraz, so any songs from those artists or artists like those would be even better, but I'm fine with whatever. Thanks!