Is it necessary to assign a string to a variable before comparing it to another?

I want to compare the value of an NSString to the string "Wrong". Here is my code:

NSString *wrongTxt = [[NSString alloc] initWithFormat:@"Wrong"];
if( [statusString isEqualToString:wrongTxt] ){
     doSomething;
}

Do I really have to create an NSString for "Wrong"?

Also, can I compare the value of a UILabel's text to a string without assigning the label value to a string?