Ryan Christie hit a hat-trick as Celtic crushed St Johnstone in a stunning start to their bid to make it nine titles in a row.
The league flag was raised before kick-off and Mikey Johnston kept the celebrations going with a fine finish.
Christie added a double before the break, his first a beauty and his second thanks to a Zander Clark error.
He made it 4-0 with a cracking strike before Olivier Ntcham, Odsonne Edouard and Leigh Griffiths added goals.
The result ensures Celtic sit top of the table on day one and is a clear sign of intent from Neil Lennon’s side.
St Johnstone, meanwhile, were miles off the pace as their miserable start to the season continues.