No Mercy is a pop and dance music group formed by PERSON@1 in LOCATION@1 in NUMBER@1 , consisting of PERSON@2 -LRB- born September NUMBER@2 , NUMBER@3 -RRB- from LOCATION@2 and twin brothers , PERSON@3 and PERSON@4 -LRB- born June NUMBER@4 , NUMBER@3 -RRB- , Xtreme Musician : PERSON@4 from LOCATION@3 , LOCATION@1 .

No Mercy is a musical group consisting of twins Ariel & PERSON@4 and PERSON@5 .
