amber riley, naya rivera and heather morris sang a mash-up of "someone like you" and "rumour has it" during "glee"s episode "mash off" which aired on 15 november 2011. however, the cover was posted online on 10 november. jenna mullins of e! online praised the cover saying that it will "knock your socks right off" and a writer for "ok!" described it as "amaze-ing". erica futterman of "rolling stone" noted that the cover was "one of the greatest things the show has done [so far]." similarly, "billboard"s raye votta commented that the cover was "arguably the best performance 'glee' has done since "don't stop believin'"." their version of the song peaked at number 11 on the "billboard" hot 100 while selling 160,000 digital downloads in its first week and became the fifth highest digital sales week by a "glee" cast single. as of march 2015, it remains the ninth best-selling "glee" cast recording in the show's history, having sold 413,000 copies in the united states. in canada, the song debuted on the canadian hot 100 at number 12, selling 14,000 downloads. the mash-up also peaked at number 35 on the uk singles chart, number 28 in australia and number 19 on the irish singles chart.