After a rendition of My Way and a saxophone accompaniment that felt closer to crooning uncles at a wedding party than high-stakes diplomacy, Malaysian Prime Minister Anwar Ibrahim and his Thai counterpart Anutin Charnvirakul announced the serious business of squashing a damaging trade row and bringing greater security to the porous border between the nations.The pair, long-standing friends, also share a love for public spectacle, with Anutin playing the classic song popularised by Frank Sinatra on the saxophone while Anwar gripped the microphone and reached for the chorus high notes at a lunch on Thursday.The Thai leader then took his turn to sing the Elvis Presley ballad Can’t Help Falling in Love as the leaders exchanged effusive praise of their friendship.Calling Anutin a “dear friend” – and a swift responder to his WhatsApp messages – the Malaysian host said the two days of summitry were “meetings among old friends”.“Is there a problem? Yeah. We’re going to solve it … When? Next week,” he said as an example of the neighbours’ ability to resolve issues quickly.Thai, Malaysian leaders perform Sinatra classic on sidelines of regional security talksBut behind the bonhomie, a weeks-long row over seafood and fish imports between the nations has vexed relations and severely damaged the Thai shrimp industry.