Not personally much of a fan of Mumford and Sons, but this song does work very well on the ukulele. Little Lion Man.

It's pretty straightforward, but to get it right is all about the fast driving rhythm. See the video at the end of the words for something to play along to. I also see this a lot in Am, but it's in Dm. Works great with a low G and some hammering on and off the strings on the Dm to F change throughout. The chorus line is played with single sustaining strums.INTRO [Dm] [F] x4[Dm] Weep for yourself my manYou'll never be what is in your [F] heart[Dm] Weep little lion manYou're not as brave as you were at the [F] start[C] Rate yourself and rape yourself[Bb] take all the courage you have [F] left[C] Wasted on the fixing all the[Bb] problems that you made in your own [F] headCHORUSBut it was [Dm] not your [Bb] fault but [F] mineAnd it was [Dm] your heart [Bb] on the [F] lineI really [Dm] fucked it [Bb] up this [F] timeDidn't I my [C] dear?[Dm] [F] x2[Dm] Tremble for yourself my manYou know that you have seen this all [F] before[Dm] Tremble little lion manYou'll never settle any of your [F] scores[C] Your grace is wasted in your faceyour [Bb] boldness stands alone among the [F] wreck[C] Learn from your mother else[Bb] spend the days biting your own [F] neckBut it was [Dm] not your [Bb] fault but [F] mineAnd it was [Dm] your heart [Bb] on the [F] lineI really [Dm] fucked it [Bb] up this [F] timeDidn't I my [C] dear?Didn't I my [F] dear..[Dm] [F][Dm] [F][C]/// [F]/// [Bb]/// [Bb]///[C]/// [F]/// [Bb]/// [Bb]///[C] Ahhh [F] Ahhh [Bb] ahhh (repeat to suit song)But it was [Dm] not your [Bb] fault but [F] mineAnd it was [Dm] your heart [Bb] on the [F] lineI really [Dm] fucked it [Bb] up this [F] timeDidn't I my [C] dear?Didn't I my [F] dear..Repeat chorus with no chords.