Prabowo presidency in Indonesia and Taylor Swift's concerts in Singapore

Prabowo Subianto has claimed a huge win in the Indonesian presidential elections but faced a fragmented legislature.  What are the challenges that a Prabowo presidency faces? What are the implications to ASEAN relations and Indonesia's relations with China and the US?  News of Singapore's subsidy for exclusive shows of Taylor Swift's Era Tour in Southeast Asia has raised protest from some ASEAN politicians of Singapore not being a 'good neighbor.'  What does it say about ASEAN solidarity or it is simply an action of an entrepreneurial state?