number-one single
... that "Please Please Me" is, arguably, The Beatles' first number-one single?
... that "<a href="./Please_Please_Me_(song)" id="mwDLI" rel="mw:WikiLink" title="Please Please Me (song)">Please Please Me</a>" is, arguably, <a href="./The_Beatles" id="mwDLM" rel="mw:WikiLink" title="The Beatles">The Beatles</a>' first <b id="mwDLQ"><a class="mw-redirect" href="./List_of_NME_number-one_singles_from_the_1960s" id="mwDLU" rel="mw:WikiLink" title="List of NME number-one singles from the 1960s">number-one single</a></b>?