Together - TVXQ song - was created on 2007-12-19.
Tone - TVXQ album - was created in 2010.
TVXQ (Formerly, TVXQ, sadly.) most likely had some input into the lyrics of thier songs. However uts highly unlikely that they composed each and everyone of the lyrics and song arrangment on thier own.
Happy Together - song - was created in 1967-02.
I believe its Mozart's 40th Symphony
Get Together - Chet Powers song - was created in 1966.
We'll Be Together - Sandra song - was created in 1988-11.
Hero Jaejong was the leader of TVXQ too but he leave TVXQ and he give to Yunho (maybe O.O)
Let's Stay Together - song - was created on 1983-11-07.
Together Again - Buck Owens song - was created in 1975-06.
No, their lawsuit was recently finalized. They are no longer 5 but promoting separately as TVXQ and JYJ.
SM entertainment. together with TVXQ, super junior, SHINee, f(x), etc...
Super Junior's definitely one of them. But the TVXQ/SJ members themselves are friends.