“Castle Walls” is a song by American rapper T.I., from his seventh studio album No Mercy.
The song features Pop/R&B singer Christina Aguilera, and was produced by Alex da Kid.
Nadine Cheung, editor of AOL Radio, has made the interpretation of the song, saying: “In his latest song ‘Castle Walls’, T.I. tells us that life has treated him well. After eleven months spent in prison by a rapper (musician has been sentenced to imprisonment for illegal possession of narcotics and violation of court order – editor.) lyrics takes on new meaning, especially memorable chorus sung by Aguilera”. [Source]
Becky Bain from Idolator wrote, “Christina Aguilera can feel pretty good because of her film debut in theaters Burlesque, however, should feel much more confident thanks to collaboration with rapper T.I. in the beautiful song ‘Castle Walls’. A piece that appears on the album T.I. No Mercy has the potential to become a hit, just as another song was a hit producer Alex da Kid, ‘Love the Way You Lie’. (…)”. [Source]