Thank you for being with me - Allen Su
http://www.youtube.com/watch?v=OU-kJExmLE0

Wife - SHE
http://www.youtube.com/watch?v=8A3Apw_tF18

Thank you for being with me -Super Girls and Boys
http://www.youtube.com/watch?v=9vynP_eglN4

Friend, don't cry - Allen Su ft Wei Chen (cover)
http://www.youtube.com/watch?v=Ecwab51Xov4&feature=related

Good brothers - Khalil Fong ft Allen Su
http://www.youtube.com/watch?v=pWvaZCaqOD4

Big Star - Yu Haoming ft Wang Yuexin
http://www.youtube.com/watch?v=PLPWUE7XTu4&feature=related

Forever Friends - Coco Lee ft Sun Nan
http://www.youtube.com/watch?v=cGUyxe0btIs

Brothers - Andy Lau ft Eason Chen
http://www.youtube.com/watch?v=2OHOmkJ6byk

Photograph by Nickelback

Hei Tang Xiu by BBT and HSHMM =]

I know the chorus is definitely about friends but I'm not sure about the rest =[

Friends Will Be Friends - Queen

for me, persahabatan by 4U2C and there is a girl in the song (I can't remember her name)

yeah agree with photograph by nickelback
-- especially if it is going to be a dedicated video for friends.

count on me - whitney houston
at the beginning (anastacia soundtrack) - forgot the singers though. but it is a duet
keep holding on - avril lavigne
take me i'll follow - i like aiza seguerra's version of the song.
i'll be there - kyla ( i doubt if you know the singer)
remember me this way - i forgot. but i know it is pretty popular for a grad song LMAO!
the scientist - coldplay

edit: vampire social club (acoustic version) - chicosci
-- the song is great i don't know if i hit the right title though

Oh my friend-Big Bang

Yeah, haha. You know Spongebob right? You know his song FUN? Here's the lyrics: F is for friends who do stuff together. U is for you and me. N is for anywhere and anytime at all down here in the deep blue sea.

I was thinking of this song too, because a couple of people sang it during my high school graduation.
What about "I'll be there for you" the theme song to the FRIENDS sitcom

TRUE FRIEND by Miley Cyrus

True Friends - Hannah Montana
At The Beginning .
Friend - Kaitlyn

"You're Ugly and You Have No Frends" (Uncle Outrage)

For me, a song of friendship would be NewS' "Hoshi wo Mezashite."

It doesn't explicitly talk about friendship, but the single was released after the suspension of two of their members due to a scandal as their comeback in 2006.

^.^

"I'll Be There for You" - The Rembrandts

LOL, how ironic I LOVED Friends...That show was amazing!...
Back to the question, probably the song Friend Like That by Hawk Nelson