Answer
The single "11:11" is included in the album "My Voice." This album, released in 2011, marks the debut solo album by American singer-songwriter and actress Hilary Duff. The album features a mix of pop, dance, and R&B tracks, showcasing Duff's vocal range and songwriting abilities. "11:11" is a standout track on the album, with its catchy melody and introspective lyrics.