"thank you" is a song from english r&b singer and rapper estelle, released as the second single of her third studio album "all of me". the r&b ballad was co-written by the american hip-hop singer akon and was produced by jerry wonda. it was released in the united states on 4 october 2011. on the track, she finds herself expressing gratitude to the man who's helped her, because the experience has helped make her both smarter and stronger. it has charted on the "billboard"s hot r&b/hip-hop songs and it is already her most successful single on the r&b chart. it also debuted at number 100 on the "billboard" hot 100.