O Prithibi Ebar Ese Bangladesh Nao Chine

"O Prithibi Ebar Ese Bangladesh Ke Nao Chiney" (ও পৃথিবী এবার এসে বাংলাদেশ নাও চিনে; O World It's Time Let Bangladesh Be Known), is a song composed by Ibrar Tipu and has been sung by Ibrar Tipu, Arnob, Mila, Balam, Kona and Elita Karim. The lyricist of the song is Zulfiqer Russell. It is the official welcome song for the 2011 Cricket World Cup. It was released worldwide on February 17, 2011, at welcome ceremony of Cricket world cup 2011 held in Bangladesh.

Background
In 2011, Cricket World Cup was held in three different countries including Bangladesh. The inaugural ceremony was held on February 17 at Bangabandhu National Stadium, Dhaka. The gala program started with a song that highlighted history, heritage, culture and traditions of Bangladesh to the world. Zulfiqer Russell, who pens the lyrics, tried to highlight the Liberation War, Language Movement, Cricket Team, Sunderbans, Cox's Bazar, and various aspects of the world. Composed by Ibrar Tipu, the song features music from classical to folk and danata, from Sanai to the traditional domestic tunes.