This is awkward.
Agreed. "...are being applauded...." sounds better but it's not accepted
The crowd applauded the singers. (Avoid passive voice.) Should be accepted?
No. You have changed tense from present to past.
This passive tense is weird. Why not use the active and say 'The crowd is applauding the singers.' And then couldn't one use the first-person plural of verb 'applaudir'?