Wiktionary
bathroom singer
n. (context derogatory English) a person with mediocre or amateur singing capability.
Wikipedia
Bathroom Singer
Bathroom Singer is also a reality show on Sahara Filmy, named after the concept of bathroom singing. The show is searching for singing talent and will be telecast every Sunday at 9 PM. Auditions are currently being conducted.
Ravi Kishan and Shibani Kashyap are the judges of the show. The show is going to focus more on the entertainment factor of the participants than on their singing talent.
In the second episode, auditions have been finished. Beginning next week the first round of this talent hunt show will be aired.