With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Gunday was written and directed by Ali Abbas Zafar.
text_B: `` Do n't Forget '' is a song performed by American singer Demi Lovato , from her debut album of the same name .. Demi Lovato. Demi Lovato. debut album of the same name. Don't Forget. It was written by Lovato and the Jonas Brothers , who co-produced the song with John Fields .. John Fields. John Fields ( producer ). Jonas Brothers. Jonas Brothers. The inspiration of the song came from Lovato falling in love with someone who later left her .. According to Lovato , it is one of the songs on the album that she most relates to .. Musically , `` Do n't Forget '' is a midtempo glam rock ballad that features Lovato singing with breathy falsetto vocals .. glam rock. glam rock. falsetto. falsetto. An accompanying music video was released in March 2009 .. Upon the release of the album , `` Do n't Forget '' was well-received from music critics , who noted the transition from her `` tween sound '' to more mature material .. tween. tween ( demographic ). The song achieved moderate commercial success , reaching number forty-one on the Billboard Hot 100 .. It also reached number seventy-six on the Canadian Hot 100 .. Canadian Hot 100. Canadian Hot 100. To promote the song , Lovato has performed the song numerous times including on The Ellen DeGeneres Show .. The Ellen DeGeneres Show. The Ellen DeGeneres Show
not_related.