Complex sentence: Adele also covered INXS's "Never Tear Us Apart" and planned to include it on the album; however she was unsatisfied with her perceived lack of believability in the song after listening to the recording.
Split into simpler sentences: Adele also covered INXS's "Never Tear Us Apart" and planned to include it on the album. However she was unsatisfied with her perceived lack of believability in the song after listening to the recording.