Alexandra Burke on stage

1. Alexandra Burke

Alexandra Burke gave 100% in an energetic set of routines

2. Alexandra Burke

Alexandra Burke, hitting that high note in "Bad Boys"

3. Alexandra Burke

Alexandra Burke delighted the crowd with a version of "All Night Long".

4. Alexandra Burke

Alexandra Burke opened her Summertime Ball set with a stirring version of "Broken Heels".

5. Alexandra Burke

Alexandra Burke delivered an energetic set

6. Alexandra Burke

Alexandra Burke's costume made her look like a space-age gladiator!

7. Alexandra Burke

Hands on hips ladies

8. Alexandra Burke

Plenty of Bad Boys to keep this girl happy

9. Alexandra Burke

Alexandra Burke gets the guys to their knees

10. Alexandra Burke

Alexandra Burke on stage at Wembley

11. Alexandra Burke on Stage

12. Alexandra Burke on Stage

13. Alexandra Burke on Stage

14. Alexandra Burke on Stage

15. Alexandra Burke on Stage

16. Alexandra Burke on Stage

17. Alexandra Burke on Stage