Here is a chorus singing Zum Gali Gali. Please listen to it and practice with it.
Here is an example of a children's choir singing the Star Spangled Banner. Listen to the vowels that they use and how they let the high notes float in the air.
Oh, say can you see By the dawns early light What so proudly we hailed At the twilights last gleaming? Who's broad striped and bright stars Through the perilous fight O'er the ramparts we watched Were so gallantly streaming? And the rocket's red glare! The bombs bursting in air! Gave proof through the night That our flag was still there Oh, say does that star spangled banner yet wave O'er the land of the free And the home of the brave?