Federal parliamentarians have been warned to behave themselves during President Obama's visit to Canberra.
Liberal senator Scott Ryan has revealed the Speaker of the House of Representatives, Harry Jenkins, reminded parliamentarians to be on their best behaviour while the US president was on the Canberra leg of his Australian tour.
Senator Ryan said he thought the message was aimed at the Australian Greens leader Bob Brown following his "five-year-old antics" when George W Bush addressed parliament in 2003.
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"I hope the Greens don't embarrass the country this time," he told Fairfax Radio.
Labor backbencher Steve Gibbons joked on Twitter he had wanted to bring his Fender jazz bass to Canberra.
He has been forced to put his jam session on hold until next week.
"Not a good day to be entering Parliament House with a long slim case!" he tweeted.
The president is scheduled to touch down in the national capital aboard Air Force One at about 3.30pm (AEDT) on Wednesday.
He will be taken to Parliament House for a ceremonial welcome, talks with Prime Minister Julia Gillard and a parliamentary dinner.
