As with the episode before we hear music classic close or at the climax of the episodes. Last time it was Yahoo - or Yaz for the audience in the USA - performing Only You while in Let the pinhead sing Tom Ellis and Skye Townsend perform "I will survive" by Gloria Gaynor. According to some sources I found Tom Ellis loves to sing.
Computer generated alien intoning Gloria Gaynor's "I will survive"
Now while there is nothing wrong in my opinion to reproduce or just play some classic tunes it should not be overdone. I'd say if this happens in the next two episode The Last Heartbreak and Orange Is the New Maze. But if they continue this this with Orange Is the New Maze I might think the show ran out of ideas to fill the 45 minutes run time with content.