I wouldn't really be comfortable singing other people's songs. The thing with The X Factor is that people bring out albums so fast after the show and sometimes it works and sometimes it doesn't. I didn't want to do that - there's nothing wrong with it - but back then I just wasn't ready to do music.
Here at his peak, Jotaro can stop time for as long as 5 seconds. It's stated that Star Platinum can freeze time for longer, but 5 seconds is the limit for human endurance under stopped time. After Dio's defeat Jotaro's Stand is the strongest Stand in the JoJo universe. Star Platinum The World, an evolved version of the Stand, appears near the end of part 6 Stone Ocean.
All I can give you is statistics. The peak time for finishing a half marathon is 1:42 for men, 1:58 for women (that is when most will cross the line). The average time to complete a half marathon is 1:50 for men and 2:05 for women and overall 1:54 for everyone. Winning times tend to be about 1:08 for men and 1:19 for women - there are faster and slower winning times of course. If you run faster than these averages, then that is a decent time.