Pentatonix Dropped An A-cappella Cover Of Pharrell's 'Happy'!

<span class="icon icon-down utility-icon " > <svg width="12" height="8" viewBox="0 0 12 8" xmlns="http://www.w3.org/2000/svg" role="img" aria-hidden="true" tabindex="-1">

<span class="icon icon-down utility-icon " > <svg width="12" height="8" viewBox="0 0 12 8" xmlns="http://www.w3.org/2000/svg" role="img" aria-hidden="true" tabindex="-1">

<span class="icon icon-down utility-icon " > <svg width="12" height="8" viewBox="0 0 12 8" xmlns="http://www.w3.org/2000/svg" role="img" aria-hidden="true" tabindex="-1">

<span class="icon icon-down utility-icon " > <svg width="12" height="8" viewBox="0 0 12 8" xmlns="http://www.w3.org/2000/svg" role="img" aria-hidden="true" tabindex="-1">

<span class="icon icon-down utility-icon " > <svg width="12" height="8" viewBox="0 0 12 8" xmlns="http://www.w3.org/2000/svg" role="img" aria-hidden="true" tabindex="-1">