Table:
text: Tweenies
Singles
Singles
Title Entered_chart_UK Peak_position_UK Weeks_on_Chart_UK Sent_to_CBeebies_Album
No. 1 11 November 2000 4 23 Yes
Best Friends Forever 31 March 2001 12 10 Yes
Do The Lollipop 4 August 2001 17 8 No
I Believe In Christmas 15 December 2001 9 6 No
Have Fun, Go Mad 14 September 2002 20 7 Yes

Question: Which single was in the charts for 23 weeks among the tweenies?