Backstreet Boy Kevin Richardson has been speaking about last week's horrific US terrorist attacks in an interview with a Canadian TV station. During the interview with the station, Much Music, Richardson questioned the policies that the American government had conducted abroad that could have brought about last week's attacks.

'I just think we are a little bit of an arrogant nation and maybe this is a little bit of a humbling experience,' said Richardson. 'It raises questions in my mind, what has our government done to provoke this action that we don't know about?'

Last week the band urged fans at their North American concerts to donate money to the Red Cross Relief Fund to help victims of the attacks.

Meanwhile stars continue to react to last week's horrific bombings by condemning the acts or cancelling tours in respect of the victims.

Destiny's Child have cancelled a further date on their current MTV Total Request tour this evening in the wake of the US attacks. The band were due to perform at Vancouver's GM Place. The band cancelled all appearances on the tour last week and had been due to resume this week. A new date is expected to be announced later today.

The Charlatans Tim Burgess says he was 'appalled' at last week's terrorist attacks and 'is very proud' of Tony Blair and the UK's support on the issue. Whitney Houston has announced she'll waive royalties from her 1991 version of The Star Spangled Banner which is to be re-released in the US. The money will go to the New York Firefighters Disaster Relief Fund and the New York Fraternal Order of Police Fund.

Meanwhile metal act Rage Against The Machine have had to close the message boards on their website www.ratm.com after the US Secret Service discovered 'inflammatory messages' being posted on the board. RATM guitarist Tom Morello posted a message of condolence to the victims of last week's bombings. He said: Our deepest sympathy and condolences go out to all the people and their families affected by the attacks on Tuesday. The loss of innocent life is just terrible.' Morello says there is a need to see both sides of the story despite the horrific violence involved in the attacks. 'On Tuesday the victims were American,' he writes. 'But the horrible scenes we've witnessed on TV this week are regular occurrences in other places around the globe and too often, violence like this has been metered out by our own country. We should stand together against this type of violence in all its forms.'