In her 2 albums, Beyonce releases 2 * 15 = <<2*15=30>>30 songs
In her next album, Beyonce releases 1 * 20 = <<1*20=20>>20 songs
Since each single is one song, Beyonce releases a total of 30 + 20 + 5 = <<30+20+5=55>>55 songs
#### 55