After releasing four promotional singles including "Big Time Rush", "City Is Ours", "Halfway There", and "Til I Forget About You" the group released their debut album B.T.R. on October 11, 2010.
Setelah merilis empat single promosi termasuk "Big Time Rush", "Kota Apakah Ours", "Halfway Ada", dan "Til aku Lupakan Tentang Kamu" kelompok ini merilis album debut mereka BTR pada 11 Oktober 2010.