Young says he hopes the offer will "ease some of the unwarranted stress and threats" Greenlanders feel over Trump's threats to the territory.
Omar was uninjured and continued to speak at the event following the incident.
About a million fans were vying for 150,000 concert tickets, which sold out in less than 40 minutes.
Lawmakers are questioning the crackdown while anger grows over two citizens killed by federal agents.
The US president said Iraq would have "zero" chance of success without American support.
The killing of Alex Pretti over the weekend led MInnesota officials and locals to renew calls for Trump to end his immigration operation there.
The Canadian prime minister said "there's almost nothing normal in the US" when asked about trade talks with Washington.
Young Iranians able tell the BBC how they saw friends and other people die as security forces crushed protests earlier this month.
Abena Christine Jon'el has made Ghana her home and aims to raise the profile of people with disabilities.
The BBC's White House correspondent Bernd Debusmann explains why the president is refocusing his attention on the US economy.
Kim Keon Hee, wife of disgraced former president Yoon Suk Yeol, is facing court on a raft of charges.
Often, Europe-bashing is best explained by domestic politics in America, China and beyond