Karaoke: 3 songs

These are 3 songs I would love to be able to do at karaoke.
What are your thoughts for a beginner?

"Suddenly I see" by KT Tunstall
Lyrics: https://www.youtube.com/watch?v=ThaW-YMFVus
Karaoke: https://www.youtube.com/watch?v=5QQnhRfaZcI

"Sweet Dreams" by Eurythmics
Lyrics: https://www.youtube.com/watch?v=THb0Pc35vJg
Karaoke: https://www.youtube.com/watch?v=TxjVOmnSdII

"This is the Life" by Amy McDonald
Lyrics: https://www.youtube.com/watch?v=0iSQIjPm-aE
Karaoke: https://www.youtube.com/watch?v=lZKyAiYRyW8