One hadith from the Bukhari Shareef, the most authentic Book of Hadith, confirms unlawfulness of music and singing :
`There will be people of my Ummah who will seek to make lawful; fornication, wine-drinking and the use of ma`aazif ( musical instruments ).`

Would you like it any more black and white than that?
An authentic hadith states that the use of musical instruments is HARAM. There's no if's and but's, no "if it doesn't have swearing" or "if other muslims do it".

By the way, just to add, just because a lot of muslims do something, that doesn't make it halal. Do you honestly believe that? I know a lot of muslims that date, drink alchohol, go swimming in bikinis, deal with interest, gamble. Are you honestly trying to say that when a lot of people do something that makes it okay? I mean, come on..